If you’re buying a gift for an aspiring prankster, try a DIY kit that lets him or her make mischief. Adafruit’s TV-B-Gone project can remotely switch off a television, even from a distance. To put it together, however, the builder will have to master some basic electronics and soldering. For an older child, this is a great introduction to slightly more advanced electronics, as it comes with clear and detailed online instructions. And if that doesn’t convince you, Adafruit founder Limor Fried herself recommends it.