I've built a pretty good body for a puppet, but am having trouble getting the arms to work (and not look terrible). I was wondering if you could point me at some resources for arms that can move. At a minimum I'd like to be able to wave. Important to note, the 'puppet' I'm talking about here is less of an Elmo and more of a Big Bird. So in terms of arms, I'm looking more at springs, skeletons, lines, and counterweights, and not simple rods. http://www.flickr.com/photos/epbot/7975100881/ To get an idea of the build process and existing internal structure, the build diary is here: http://imgur.com/a/yJHcF#7nLY8 Thanks!