I used chefmaki's design as a base: http://www.thingiverse.com/thing:37776
Then i Designed and printed some internal mountain mechanisms for RGB led modules, an Arduino Micro, a 12V PSU and a 6DOF accelerometer and gyroscope combination.
Here is a video of it in action: https://www.youtube.com/watch?v=yBN_QE1dK4k

Printed the wall and lid pieces with @pause statements in the Gcode at strategic layers. Then changed the filament and resumed to get the tricolour companion cube lamp.

If you do this change the pause gcode to include raising the nozzle 30mm or so to stop it making a blob on your print.

Printed the electronics mounts and assembled the electronics. (more detailed instructions to follow) . As you can see from the image, I am hoping to fit a Raspberry pi into it for version 2, but this is going to require some modifications to chefmaki's design.