German-designed Wowstick Mini weighs just 50 grams and, with a diameter of just 16mm, is the world’s most compact electric screwdriver. An aluminum alloy unibody houses a dual power mechanism (press and watch it roll) as well as three shadow-less LED lights similar to those used by surgeons, making the most intricate of tasks infinitely easier. Plus, the battery’s good for six hours. Wow.