Well, it sort of depends on what your design is, but through the wonders of the Internet, you can send Ponoko.com a basic cocktail-napkin design for a table or piece of jewelry (they LOVE their jewelry), and they will design it and even sell it for you. You can also just have them design the blueprints and then you can make it yourself, or just download their pre-made plans and make stuff yourself. It’s like a combination of Etsy and CafePress, but definitely attempting to be geared more towards gear-heads, or at least people who liked woodshop in school.
Created by David ten Have and Derek Elley, it is based out of New Zealand, so it might take awhile to get products to you. But the idea is GENIUS, and a great jumping-off platform for either the wannabe artist or wannabe industrial designer.