When Rob Yonover showed the sharks a picture of the ocean, they couldn’t see him.
That was the point.
He showed them another picture, this time with a long orange streamer trailing behind him. Now they had something to look for. I liked that reveal because you got the problem before he had to explain what a strut was or tell you how long he’d spent trying to sell the thing.
Rob is a volcanologist, inventor, surfer, and the guy who put that orange line in the water. But the question I kept coming back to was what happens after you get somebody to see it. Getting seen, getting bought, and getting put on every life raft are three very different jobs.
In this episode, you'll learn
How a long orange tail makes a person easier to spot.
What military approval, royalties, and a trade-show booth did for Rob’s business.
What his Shark Tank pitch got him, and what it didn’t.
Why he cares more about meeting the right buyer than getting another million views.
How caregiving changed what he needed from the company and what he did with his time.
Contents
An orange tail for a speck in the ocean
The house with the phones in the bathroom
Approval is permission to sell
A book I couldn't have gotten from a prompt
He practiced so he wouldn't have to sound practiced
What was the $200,000 supposed to buy?
The gap between a good test and a mandate
A week at the boat show or one conversation with a commander?
The tortoise wanted a contact list
What the royalty check made room for
An orange tail for a speck in the ocean
I started with what he makes and who buys it. A rescuer flying overhead can miss a person whose head looks like a speck against water or land. A flare can get attention, but it disappears. Rob’s SEE/RESCUE Streamer is a strip of bright orange material held open by spreader bars, so it doesn’t simply twist up. He described versions long enough to give that speck a 25- or 40-foot tail. You can pull it back in and put it out again. Try doing that with smoke.
His idea goes back more than four decades, by his estimate. To get people to test it, he faxed press releases and pursued both media and military buyers. Here’s a grad student from Hawaii proposing a piece of plastic for expensive aircraft. He understood why people wanted proof. The side-by-side test was the proof he needed: plain ocean in one view, an orange line in the other. Military testing, approvals, and stock numbers helped make the idea something units could buy. The military was his first customer.
The house with the phones in the bathroom
Why was somebody studying volcanoes working on rescue equipment? Rob had been on active volcanoes, gone two miles down in a submersible, surfed waves with 20- or 30-foot faces, and fished rough water far offshore. In his telling, taking those risks made him think a lot about coming home.
At home growing up, there was a mail-order business and a plaque that said “just say no to real jobs.” His dad worked from the house, sometimes in his underwear, with business phones ringing in the bathroom. Rob bounced ideas off him for years. I asked whether his dad got to see the invention take off. He saw Shark Tank. He’d also been wounded in World War II and received a Purple Heart; Rob valued the perspective he brought to a business problem.
His parents expected their kids to become capable adults. They lent him the station wagon at 16 to go surfing from Miami to New York with three friends they weren’t exactly thrilled about. No cell phones. He said they trusted him to be responsible and took particular satisfaction in seeing him provide for his family and care for his wife.
Approval is permission to sell
I asked what happens after the military approves something. In his case, it became an optional item. He still had to go find the orders.
A 15-year license with guaranteed royalties gave him money to go to trade shows and let him get through stretches between purchase orders. He tells inventors to keep a day job if they need the cash flow. He doesn’t particularly want a day job himself and has taken them anyway. There’s a difference between choosing to work on an invention and needing that invention to pay your bills this month.
I’ve lived under that pressure. In book production, a big client or a good book tour can bring in a lot of cash. That doesn’t make next month steady. I’ve gone in and out of jobs to deal with that, especially with AI changing the business. The flip side is that needing the business to pay bills has made me solve problems quickly. We both understood the trade.
A book I couldn't have gotten from a prompt
Rob suggested a human-generated label for books. He doubts people will keep paying to have a tool think for them, even though he’s happy to use search. I can imagine people paying for AI. My question is different: when I buy somebody’s book, am I getting their idea? If I feel like I’ve bought an output I could have prompted myself, what exactly did I pay for?
Then we got onto physical books. I want my toddler in my lap with a book, and when we’re done I want him to go grab another one. A tablet doesn’t feel like the same thing. Rob’s coauthor has written children’s books, and he takes his granddaughter to the library. To her, the place is a gold mine.
A friend of mine wants his kid to be able to earn money by reading something from a list and writing a report. Rob would ask questions about the book afterward, and he’d pick books he’d actually read himself. Good luck bluffing your way through that with a summary.
He was the kid who wanted to be out surfing while his brother read. A high school literature class got him reading The Jungle, 1984, and other classics. Later he finished War and Peace and recognized people dealing with problems he could still recognize centuries later. I told him the thing that brought back my own appetite for reading: my phone stays downstairs at bedtime. I read for about an hour now. Rob held up his decidedly unglamorous phone. In Hawaii, he joked, sometimes it takes a hurricane knocking out the power to get people reading.
He practiced so he wouldn't have to sound practiced
Rob had no connection at Shark Tank. He went to an open audition in Honolulu, arriving at five for an eight o’clock start. He remembers hundreds of people in line. A short pitch became more cuts, videos, and months of waiting to get to Los Angeles.
The producers wanted the pitch in writing. Rob likes bullet points because he watches people’s faces and changes course when they’re getting bored. When the producers liked his answers more than his stiff rehearsed pitch, he finally got room to work the way he normally does.
The photos set up the reveal. He also asked Kevin O’Leary to unroll the streamer down the hallway, knowing the other sharks might give him grief while he walked it out. That put the length of the thing on television without a slide full of dimensions. Rob remembers being in front of the sharks for roughly an hour; viewers got about seven minutes.
Nobody invested. He was mad about it, and he remembers telling the camera crew afterward that they’d rather invest in cupcakes. Still, the segment showed the product to people he couldn’t have reached himself. The sharks’ reaction to the demonstration was useful even without a check.
What was the $200,000 supposed to buy?
Before the show, Blue Startups helped him get into consumer e-commerce, including the barcodes and setup he needed for Amazon. He turned down an investment offer there. Taking money meant taking on someone who would have a say in the business.
So why ask the sharks for $200,000 for 20 percent? I thought that was a lot of equity. Rob wanted Mark Cuban’s reach. If Cuban could get him in a room with people who make equipment decisions, Rob thought the streamer might become standard on a much wider scale. Twenty percent mattered less to him if more people came home. He expected the modest ask to start a bidding war. Instead, the sharks thought it would take more capital.
That reminded me of pricing ghostwriting. When I charge too little, some people assume I’m bad at it. Rob once wanted to sell his streamer for $19 or $29. A friend told him to price it closer to $100: it could save a life and didn’t wear out quickly. Rob said sales at about $95, with features such as reflectors and chemical lights, were better than at $29. It was still a hard consumer sale.
The $15 million he mentioned on the show was roughly 15 years of sales, he said, about 90 percent military. That’s a substantial business, and it’s a different picture from $15 million every year.
The gap between a good test and a mandate
Rob said some overseas forces put streamers on flight equipment for specific applications. He hasn’t secured a broad U.S. military or Coast Guard mandate or recognition as a substitute for required signaling gear. He described tests in which the flare, smoke, and dye were gone while the streamer was still doing its job. He now talks about what he’d want alongside those tools. A flare can get above the horizon; the streamer gives rescuers a persistent mark to look for afterward.
I asked what it would take to make it standard. He’d pursued lobbying, and he said access to appropriated funds helped win military interest and contracts. Consumers, insurers, boat companies, airlines, and cruise operators don’t all have the same incentives. A plane carrying extra equipment pays for its weight in fuel. He thinks a life raft is a more obvious place to start: a round raft in rough water can look a lot like a whitecap from above. Those were his arguments for adoption, not a statement about what equipment a particular boat is legally required to carry.
One consumer audience that did respond was the person at home who wants the adventurer to come back. Either spouse can be the one doing the crazy thing. The folded streamer is small enough to give as a gift without asking somebody to carry a second suitcase.
A week at the boat show or one conversation with a commander?
Trade shows are his best channel, and he doesn’t especially like going to them. Early on he walked other people’s booths in a suit with a streamer in his pocket. With his own booth, people could come to him. The decision makers were there.
My wife and I had just taken our book-based curriculum to an Orlando homeschool show. Rob thought the niche was the point. We could go to a big book show, but these were parents arriving to decide what to teach their kids that year. We also talked about education funds some families had to spend. The broadest audience wasn’t necessarily the one ready to buy.
At an outdoor show, Rob once put on a press conference and got one person. He still got pictures of himself at the podium and had something to use afterward. One reporter can be enough. A podcast or an article gives somebody a third-party account they can find when they search your name. Rob posts original material on several platforms, even though he isn’t much of a smartphone guy. He thinks you have to keep giving people something recent to find.
He and his father sold around $1,800 worth of streamers over a Miami boat show. A conversation at one military show could lead to an order for 400. Clubs offered a smaller version of that idea: make a discount available to all the kayakers, flyers, or boaters in the group. He suggested we could approach homeschool networks similarly. A van full of streamers and a different show every week might work, but he’s tired of getting on planes from Hawaii.
I kept trying to pin down the buyer’s title. Aviators have a particular reason to care: someone who ejects may land in water or on a mountain and need to be found or extracted. Commanders can buy for their own units. Getting every raft outfitted takes a decision higher up, and Rob didn’t have a tidy answer for exactly whose desk that lands on.
I suggested it might be a discoverability problem. He pushed back. He’d already had television reruns and clips that, by his account, got tens of millions of views. Some of those viewers were surely the people I was talking about. More attention is one thing. A person with authority deciding to buy is another.
The tortoise wanted a contact list
Rob’s brother put the investor question this way: “I don’t need your money. I need your rolodex.” That was what Rob had really wanted from Cuban. Without guaranteed royalties, he doesn’t want another license tying up the product. He doesn’t want to sell the company and end up working for the buyer either.
He calls himself the ultimate tortoise. Keep overhead low enough that an ordinary stretch of sales covers it. Retreat into the shell when you need to. Keep going until the next big order. His father worked into his nineties, and Rob wants something he cares about doing for just as long. I joked that the tortoise would be on his tombstone. He seemed pretty comfortable with it.
What the royalty check made room for
I asked how he kept the company going while taking care of Cindy. She’d been training for a marathon when a limp became a cane, a walker, then a wheelchair. Rob said she lived with paralysis for 19 years. They were about 37 when she became ill and had children aged four and seven.
He worked through what had to happen that day: kids, care, business, a little time to keep himself steady. The license came around the time Cindy became paralyzed. A monthly check and other people helping run parts of the business gave him room to care for his family and work on grants and other inventions.
Living by the water helped. He could get out to surf or paddle for an hour when he had a break. Prone paddleboard, he corrected me. You lie on it. I told him that when I went through my divorce in 2019, I was also selling books on the road. I’d do two school visits in Arkansas and go hiking in the evening. One part of my life was taking off and another was falling apart. Having time outside mattered.
Rob connected that to Emerson and Thoreau and to surviving alone in the water. Your first piece of survival equipment, he said, is your brain. He also walked through the 168 hours in a week to make the point that a job doesn’t consume every hour. The exact sleep math was his illustration, not a prescription. What mattered to him was noticing where his time went and how easily a phone could eat the time he had left.
He kept finding ways to include Cindy. Friends invited them to a club, and he helped her into the best seat. When everybody else got up to dance, she suggested they make out. That was their answer to an evening that other people might have assumed they couldn’t have.
No Electricity Grandpa
His grown children live nearby, and he’s enjoying a restart with his grandchildren. He described a stick-shift car, loud music, windows down, a park, a book, and a stop for a bean burrito. This is the man who used to be Uncle Punishment. Now he calls himself No Electricity Grandpa. The library and Taco Bell get exceptions.
He was joking about putting kids to work in the salt mines. The part he meant was that he wants children alongside adults doing real things, and he thinks they respond to clear lines. I see some of that with my toddler. The moment I set a boundary may be loud. The next several days can be much easier.
The number he can't give me
On Shark Tank he said he knew of at least three lives his invention had helped save. I asked what he’d put that number at now. He doesn’t know. Two people told him their stories at a trade show. Much of the use is military, and he doesn’t necessarily hear when a crew unfurls one to mark where a helicopter should land. He believes the number is higher. He couldn’t give me a count.
What he could tell me was how it felt to have somebody come up and thank him. He’d hoped one of the sharks would want to feel that too. That’s part of why he’s still making a product that might stay on a boat for thirty years without wearing out.
If you’re trying to sell something people need but don’t think about until they need it, I’d start with his photos. Can you make the problem visible? Then I’d ask the question we spent a lot longer on: who can actually make the decision?
Watch and connect
Watch the full interview on YouTube
See Rob’s Shark Tank segment on IMDb
Rob also mentioned Hardcore Inventing, Caregiver’s Survival Guide, Hardcore Health, and Brainstorm Islands, his children’s book about inventing your way out of trouble with a dog.
This article is based on our September 16, 2026 interview. Sales, view counts, adoption, and rescue accounts are Rob’s recollections from that conversation.