A bird-feeding face mask may seem like a gag gift, but HummViewer's success since appearing on ABC's "Shark Tank" is no joke. "In less than a day after appearing on 'Shark Tank,' we sold out of 1500 units, equaling $102,000 in sales," Joan said. In the eight months after their segment, they brought in $350,000 in revenue and quit their full-time jobs, they said. The couple hoped Lubetzky could help them with retail and marketing, which he did, John said. Being on the show was a "life-changing success that came with some problems at the same time," said Joan.

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Persons: Joan, John Creed, Daniel Lubetzky, John, Lubetzky, it's Locations: Loveland , Colorado