Recently-launched Thingiverse.com is billed as “a place to share digital designs that can be made into real, physical objects” and contains various files (mostly vector graphics, schematics, etc.) for things as simple as a gravity-defying belt hook, the somewhat more involved (but still pretty easy) DIY laptop stand seen above, or the complicated-looking stepper motor circuit diagram.
You can upload your own designs or browse what others have uploaded. Looks like it could be a good site to check out the next time you’re thinking of buying some sort of case, holder, or dock for one of your gadgets (DIY iPhone stand, anyone?) but you don’t want to pay those outrageous department store prices.