Learn how to make this fun Christmas themed Nutcracker automata. Pull the string and make his legs and arms go up and down. Once you know how the mechanism works, you can make all sorts of versions of your own.
You can download and print the template I've created from google documents, here's the link:
https://docs.google.com/document/d/1fttmPDHsZMLkOzyiqAJ-WGlnV3Z4ypzT8lXzLLVp3aA/edit?usp=sharing