Asshole stick: DIY USB destroyer the size of a thumbdrive

This gadget does exactly as promised: it looks like a thumbdrive (sort of) and fries the circuitry of any computer it's plugged into. It's made from camera flash parts, is charged with a standard AA battery, and delivers a 300V zap of DC destruction to the port for all your USB-murdering needs.

Note that this is not useful for any interesting purpose (unlike, say, the USB Kill stick): it won't scramble or delete data or accomplish any forensic or utilitarian outcome. It's just an asshole stick.