I've opened my own shop at Shapeways.
I call it GameBits. In essence, anyone can check out the models I've designed and buy them. Shapeways will ship them directly to you!
I am going to offer any bit (component) that I design for my games. I will also model any bit that anyone would like to use in their own design/prototype; sort of like commission, I guess. It's just a lot of fun designing my own pieces for my games as well as designing the games!
I currently have 3 models up. I've got the ships I used for Hagoth, the Titles of Liberty for Peril, and I just put up a meeple that I thought was cool. I mean, they're so common now-a-days.