Hollow lighted celtic skull base

I used this in constructing a present for a friend in combination with the Skull With Pointed Teeth, http://www.thingiverse.com/thing:31998.

By modifying the OpenSCAD source, I removed the lamp holder, hollowed out most of the main base, and relocated the cord hole slightly. This gave me more room for electronics and wiring for LED's inserted directly into the skull. I placed red 3mm LEDs inside a 10% fill directly behind the eyes which worked really, really well. I also scattered some slow c