3D Hubs : Community based 3.D. printing and manufacturing service that allows you to upload your 3.D. model and print it in a variety of materials. It’s possible to join this if you have a 3.D. printer and provide 3.D. printing!
Shapeways : Another community based 3.D. printing and manufacturing service that allows you to upload your 3.D. model and print it in a vast array of materials.
