Aigner-Clark and her husband, Bill, were hoping sales of their Baby Einstein video would cover its $15,000 cost. "That first year, we did about $100,000 in sales," she says. "And for me that was a ...

She shot the first Baby Einstein video in her own basement with a borrowed camcorder, a few puppets, and an $18,000 budget. Five years later, she sold the company to Disney for a reported $25 ...