Best of luck to your project. At the last San Diego Comic Con, I saw a guy with a 1:1 scale R2D2 that he homebuilt himself too. It was fully remote control. He had al the color changing lights and what not. Like the red/blue eye changes colors intermitently and the rectangular lights on the head changed lights too. The chest stripes (the horizontal ones opened on command. Everything fromt eh head turning and the whistling was remote control. And the best part was that the top stripe was a front loading cd deck. (from car) And inside he had an entir sound system. The lower stripe revealed a audio deck display. then as it played music he made R2 dance. the funny thing was that he would make R2 drive around the dealer floor while kicking back with the remote in a messenger bag and make R2 run into people or follow people.