Sphero's Force Band will let you control BB-8 with gestures
 

Sphero's smartphone-controlled BB-8 droid (from the new Star Wars film, of course) is one of the cooler toys we've seen. The company's looking to add an extra level of interactivity to the droid by means of a wristband that'll let you roll it around...

http://www.engadget.com/2016/01/04/s...b8-force-band/