Want to show us your 3D printing skills while helping out an amazing cause? You can give us the finger ;) Seriously by 3D printing parts of a prosthetic hand by EnablingTheFuture.org
In an effort to have meaningful 3D printer quality test sample prints, here are some design files for the 3D printable "Raptor" as found on Thingiverse: http://www.thingiverse.com/thing:476403
Once we have enough parts for a hand, we'll let you know and then send it off to http://www.EnablingTheFuture.org so they can change a life.
If you don't like the Raptor and want to help 3D print a different design, check out their entire array of prosthetics: http://enablingthefuture.org/upper-limb-prosthetics/ If you have trouble 3D printing any of these parts, let us know. We'd love to help you help us give a hand to those in need.
When you're all finished, send whatever part you've printed to our headquarters: 1595 17th Ave, San Francisco, CA 94122