While we experiment with downloadable designs on this site, at New Zealand's Ponoko, they are already doing it. They put all of the pieces of the puzzle together to let designers upload their flatpack designs, let purchasers buy them, and they find manufacturers to laser-cut them out. They call it "the world's first personal manufacturing platform. It's the online space for a community of creators and consumers to use a global network of digital manufacturing hardware to co-create, make and trade individualized product ideas on demand."