Those evil, evil people at Evil Mad Scientist are already setting up for Halloween with their new version of their Cylon jack-o'-lantern. Now you can buy your own Larson Scanner Kit to do exactly the same.
Their new Larson Scanner Kit—which requires soldering—only costs $US13, and it is a lot more energy efficient that the original, released three years ago. That means that the battery and your nightmares will also last a lot longer. [Larson Scanner Kit via Evil Mad Scientist]