Chopper is the newest droid to be introduced into the Star Wars universe. It will make its debut in the new animated series, Star Wars Rebels. YouTube user oldrepublicjedi1 released a video of his custom made fully functional model of the droid.
"The Chopper project is now finished and I wanted to show him to the everybody before his debut on Saturday at the MCM London comic con, at the Excel. He will be displayed at the Rebel Legion anD 501st area for people to see him and have their photo taken."
If you're going to MCM London Comic-Con you might as well stop by and check it out!