We present to you the most pointless gadget ever

You turn it on, it turns itself off. ThinkGeek's Useless Box Kit arrives as a "pile of parts" you put together yourself (you'll need your soldering iron), but once you've assembled it and snapped in two AA batteries, the device will delight you with its complete pointlessness. "What does it do?" a video displaying the geeky gadget's futile charm inquires. Cut to a finger flipping the shiny black box's switch. Out pops a metal finger and turns the switch off. That's all it does. Or you could skip buying the kit, which retails for a mind-boggling $39.99, and just watch it on YouTube over and over again like we just did.