When Haley Pavone, founder of Pashion Footwear, pitches her innovative high-heeled shoe business to (overwhelmingly male) sneaker-wearing venture capitalists, she often suggests that they discuss the idea with their wives. Those who follow the 23-year-old's advice tend to return less skeptical and more intrigued, she says. "It's worked every time, it's really funny."Pashion produces heels that turn into flats.