The Energon Pub

http://www.youtube.com/watch?v=iLse9YosPWw&list=UUxtPTCXHKNIUs1o_vFcQpOA&index=1&feature=plcp

I am looking for new ideas for this coming Halloween. My soon to be 6yr old loves Transformers. I introduced him to them a few years ago and now he knows more about them than me (I'm proud). He enjoys watching the shows, the movies, toy reviews, and stop-motion. I am looking for a way to top what I did last year (see video) keeping in mind he only weighs 40lbs so I can't get to crazy with the weight of some materials. I can only come up with trying a different character but I also want to add cool features. Thanks in advance!