Couldn't resist another small post. Mike Brent at darkmattr.blogspot.com (see my link at the side) is giggling like a school girl about being 1 of 50 recipients of a Coraline Box that contained, among other things, a puppet arm used on the film. Like any true stop mo maniac, he couldn't resist cutting the arm open, to see how it works.
He's posted the results here. Have fun!