After seeing the new Star Wars, and the completely random, red C3PO arm, I figured what the heck, I can just print him a new one. (since, apparently there is no gold paint in space.?) The e-NABLE community has trained me in the ways of the 3D printed force. So here ya go!! This is a custom design modified to the fantastic and open-sourced Team Unlimbited Arm found here: http://www.teamunlimbited.org/ It is finished with standard parts from the Phoenix hand for the fingers and pins. The uploaded files above, are at 125% scale, of the source files.
All files are in one plate, but should be easily separated in the slicing software of your choosing.