It's easy to assume that a tech-focused "Shark Tank" company from Season 1, such as the seatbelt-detection device LifeBelt, would be defunct by now.But Voyage Air Guitar has defied the odds ...

As for the $75,000 that Kevin Mac and Nicholas George were seeking in their Season 15 Tik Pik pitch, the duo was offering a 10% equity stake in the company to any Shark who bit.