Aka.me's stuff tagged with bookcasebedroom. Make an LED Blaster. If you fancy a Star Wars rebel trooper blaster pistol, you have basically 2 commercial options.
There is a blue plastic dart gun by Hasbro, or a great looking, solid but non-functional $400 model from Master Replicas. Neither of them shoot bolts of red light accross the room. I wanted one that really "worked" and looked good, so I made my own.