Thank you "summerki" for this awesome idea! I didn't do it nearly as well as you did, but overall I'm pretty happy with it. My sister helped me with this cake too. I cut all the gears out of gumpaste. Hand etched the plated into the cold buttercream, and added the screws. We had a lot of jaws drop when we brought it to Peter Piper's for my son's birthday. It was fun!! Oh.. the robot is a toy.. My son wanted it off the cake before I could even put it on.