Robot body for GM10 motors and wheels from Solarbotics
. The part was made to be easily reproduced with a one-part silicone mold. Be sure to use Transparent Detail if you plan to make a mold.
I have purchased the part in WSF and verified fit of the motors. There is a tiny bit of trimming necessary to fit the motors, but nothing difficult. You will also need to drill a small hole in the bottom front to use as a caster (see assembly model).
A preliminary PCB is available at robotguy.net/Deskpet_PCB.zip
(in Cadsoft Eagle format), or use a Baby Orangutan controller