Luxeon RGB LED Light Saber
If you are looking for a new project that could be worked into part of a Halloween costume have a look at this Luxeon RGB LED Light Saber that George Hadley from Nbitwonder put together. The PIC18F2221 based Light Saber is open source and has gone through lots of variations, you can see some of the project build details here. There is lots of custom features that are built into