The Illuminating Door handle. Handle indicates the room is occupied with a red light on the outside of the door when the thumb turn is activated. When the room is vacant there is a continuous green light on the outside. It looks like a light sabre!
The Star Wars Lightsaber Thumb Wrestling game book provides multiple arenas for epic lightsaber thumb duels. This is something which will one day go into my tower of Star Wars awesomeness. In that Castle I'm going to buy.