Josh L: Those are all printed from shapeways.com. I have a printer at home that I used to make prototypes from abs. For the SCTE I also made a wire guide that goes on top of the center diff mount a a mountable dean's plug holder so they can't come unplugged or flop around. See my signature for a link to all my designs.
For whoever just ordered one of the servo mounts on shapeways, Please be aware that the description says the box top is a separate item. You just orded the bottom part and did not create a user account so i cannot contact you directly.