Alright guys I am having a hard time finding the screw for the Captain America and Iron Man 2 Hummer bot heads. I have each of this molds and want to remove the heads to paint the bodies. Like the other transformers there is the screw on the back of the head than can be removed to get the head off. Ironman and Cap don't seem to have this feature. How do you get the heads off without destorying the toy. Question 2: Was going to be using a old perceptor head I have for another kitbash How to you place the head on a ball joint for articulation.