A real life Eyedropper tool! This is awesome. A pen with a little censor that scans the color of the object you point it at, then you can write in ink that exact color, it's like the eyedropper tool in photoshop outside of the computer.
Shine activity tracker by Misfit Wearables. (Accelerometer and other as-yet-unknown sensors). All-metal, waterproof activity tracker that you can sync with your smartphone just by placing it on your phone screen.