Halloween 2013 skeleton marionette

The goal is pretty obvious this year, but may be a lot more trouble. I'm getting tired of the clunkly, pivoting haunts I always see every year on the DIY blogs as well (as my own lame attempts) and always marveled at the fluidity of puppets. There is something organic and random about a dangling, controlled structure - I just want to know if you can have that visual impact with the constraints of only using a single motor. Yes I could buy several and have  them set for all kinds of whacky phases but I think the single motor limit is what is driving me this year.