Rewatching the bluray for the 20th time and I have always loved the design in the movie; however, I haven't found a single prop to ogle at on the forums. So please, if you have any, feel free to show them off!
Just watching this myself and I LOVE the robot designs. I have seen NOTHING prop related for this movie though - either here or elsewhere online. I love the simple robot heads (very reminiscent of the NS-4's from "I, Robot") but haven't seen anything - wouldn't have thought they would be very hard to do.