A Push Puppet named Eeps

Push puppets are around as long as I can remember and I've always loved the simple yet smart, funny and inspiring little toys.

Making push puppets has been on my mind for quite a while, but somehow I never got to it. Until now. Until a MakerBot Replicator 2 appeared on my desktop (literally!).

Here's a question: For this model, I used a regular steel spring from another push puppet. It would be great if the spring can be printed with the other parts. If you have ideas for printing a spring