https://www.youtube.com/watch?v=aUYxqMcc1rE
This is the Droid you’re looking for. For the past 38 years there hasn’t been a robot more loved by fans than Star Wars’ R2-D2. But that could all soon change when The Force Awakens hits theaters, especially now that anyone can own a tiny working version of the movie’s BB-8 droid that can roll and balance all by itself. Read more here: http://www.engadget.com/2015/09/03/sphero-bb-8-star-wars-toy/