Not a derivative at all. richgain gets all the credit for the model. This is just a new approach to 3D Printed sculptures.Thingiverse user richgain applied a hole in his sculpture. I just added a LED and printed the sculpture with translucend PLA.The result is really nice and I think it can be easily applied to other sculptures as well.Insert a LED into the hollow sculpture. Don't forget to put a resistor in the circuit, otherwise you'll kill the LED.