Bionicle Light up Sword

Bionicle Light up Sword,
originally uploaded by mhuffman.

I had a Bionicle light up sword that didn't work... batteries died on it I assume. Decided to take it apart and see what kind of batteries it took -- 3 x LR41's for those who really wanted to know. There's a lot of components that went into it... I'm thinking of other applications for the LED + batteries box... wondering if could be put into a different switching mechanism...