I am currently researching another Iron Man project: Tony's Repulsor Boot.
I am especially looking for the large object on the backside of the boot and all the little piston connectors. I am pretty sure, the large thingy is a found object. I browsed the net for animatronic piston connectors, but so far I had no luck.
I found some comic con 07 pictures of the original boot, but if anybody has additional photos of the prop, I'd appreciate those.