Everyone thought that the BB-8 droid seen in the Star Wars: The Force Awakens trailer was CGI, but as it turns out, it is not CGI at all. They proved it during Star Wars Celebration with this live demo. I don’t think anyone saw this coming.
The BB-8 effects are very practical. I still think it looks a bit too “pixar”, but I have to admit, this little droid is growing on me. The real question is, how on Earth did they pull it off? I guess we will find out soon.