Whether for presentations or driving your cat up the wall, laser pointers are as fun as they are useful. Given everything else an iPhone can do, it only makes sense that it also be able to shine a focused beam of light when and where you need one. The iPin Laser Pointer fits neatly inside your iPhone’s headphone jack, turning it into a red laser pointer. Batteries aren’t an issue, since the iPin sips power straight from the phone, and a built-in switch that means you can leave it in the jack when not in use. iPin also comes with a slideshow-controlling app, which together with the laser make this a great option for anyone who gives regular presentations.