LED lit Lego Lightsaber. I added a 0805 led in the base of a Lego Lightsaber. I drilled some tiny holes in the saber, hand, arm, and leg to route the wires, to make them invisible.
Had someone help me with it a month or two ago and he brought the drill bits and did the drilling while I did the soldering. It turned out pretty nice.
Sorry for the late reply. I only just notices your comment. I used either a 0.9mm or 1mm carbide drill from ebay, place inside a dremel. I probably used the dremel shaft extension for that one. For the wiring I used two 0.1mm enameled copper wires, twisted together.
Had someone help me with it a month or two ago and he brought the drill bits and did the drilling while I did the soldering. It turned out pretty nice.