DiY Saber: Make Your Own Lightsaber on the Cheap
Ultimate geekery.
If you're into building tech toys, you've probably wondered how easy it would be to make a light saber from off-the-shelf parts. Turns out it's actually pretty easy, and not very expensive either.
Even if you aren't going to build one yourself, this is fun to watch - Dave has got a lot of great trivia about how the original ILM team built the first sabers out of old camera flash devices and windshield wipers.