Geek O'Clock contest! 4/1 is almost here, which means you need pranking devices like http://j.mp/zyNSOg. It also gives us an opportunity to prank YOU. So @ reply to @thinkgeek with hashtag #prankme to enter to win 1/3 of what you (can't really) see in this image--we'll reveal the contents later. You have until 5pm ET, and only one tweet per person, please--though you can also enter via Facebook (facebook.com/thinkgeek) and G+ (ThinkGeek).