These are the droids your looking for - Sphero release R2D2
Sphero release R2D2 and BB-9E to join BB-8.
BB8 by Sphero is the droid your looking for!
Perhaps the coolest revelation about the new Star Wars instalment - The Force Awakens was that BB8 the cute robot head on a ball was actually real and not CGI - Now you can own one!