When I started my company, my wife and I were in our 20s. Ten years later, we've made over $250 million in sales.

"I typed "yoga wheel" into my Amazon account, and the suggested text finished my phrase. That told me there was demand that the algorithm was recognizing, but there weren't too many sellers. I went to the store and bought $400 worth of pipe and $50 in yoga mats. I set up shop in my buddy's mom's barn and created 110 wheels. I listed them on Amazon and made thousands of dollars in the first two weeks."

"I was 23 when I started making the wheels, and my now-wife Hannah was 21. At the time, we were living off love and potatoes, and pouring all our profits back into the business. We were able to do that thanks to some savings I had. After high school, I did a Mormon mission in Fiji for two years. When I returned, my older brother was working in pest control sales, going door-to-door."

Tate Stock and his wife Hannah founded Chirp in 2015 after discovering a yoga wheel. Stock bought PVC pipe and yoga mats with a $450 initial investment and manufactured 110 wheels in a barn, listing them on Amazon and earning thousands in the first two weeks. Chirp has generated more than $250 million in sales over ten years. The founders lived on about $22,000 a year and consistently reinvested profits to grow the business. Stock previously earned $100,000 in summer pest-control sales after a Mormon mission. Stock declined multiple outside investors, including an offer from Shark Tank.

Read at Business Insider