How i can do make the BB-8 Sphero Toy Works

We recently visited the workshop of Mike Senna, a droid builder who has made his own R2-D2 and Wall-E robots. Mike's next project is recreating the BB-8 droid featured in Star Wars Episode VII: The Force Awakens! We discuss what's known so far about how BB-8 was built for the film, how a remote-controlled model could be built, and take apart a BB-8 Sphero to see if we can learn anything from the small-scale toy!