T-Shirts

Under the category of "why didn't I think of that?", and also "participatory on-line communities that make money for their creators", and also "wow, that's a neat frickin' idea": Threadbare, the t-shirt company that get design submissions from it's customers, let's their customers vote on which ones to print, and then sells them back to the very same people. I bet they're making money hand over fist, and it looks like a cool place to work. Plus, some very cool t-shirts.