Remember the Sphero BB-8 Droid? The robot is already cute and fun to play with, but with the Star Wars Force Band, you can control it like a real Jedi. The Force Band attaches to your wrist and lets you use simple gestures to control your droid. BB-8 will follow you based on the motion of your arm and the direction you are moving.
You can pull, push, and drive your BB-8 with this wearable device. The above video shows it in action.