The TV-B-Gone, a small device that can turn off all TVs within 100 feet—perfect for terrorizing your neighbors or local sports bar patrons—made a lot of headlines when it debuted last year. Now open-source hardware queen Limor Fried has a kit that lets you build one yourself. We've used Fried's kits before—to make a small POV device—and found them to be excellently documented and a great intro to soldering and building basic electronics. We'll be ordering one to build here in the office—and I have a feeling the lunch room Days of Our Lives viewing is about to get a little more unpredictable.