Medieval Madness - Merlin Magic Mod:

Merlin has an iridescent small crystal ball in his hand; installed inside the ball is a small super bright color changing LED which cycles through Red, Blue and Green.

This mod installs over the mote – its shape and size fits this area perfectly! The installation of this modification requires no drilling, soldering, or permanent changes to your machine.  You simply screw the mod to a playfield screw, run the wires under the playfield and up where two clips are hooked up to power the LED.  It comes with everything you need to install the mod, to include detailed installation instructions.