My most recent project is animating a slinky. Tell me what you think:
Falling: http://www.nmt.edu/~jberg/gallery/movies/slinkyFall.avi (284 kB)
Walking: http://www.nmt.edu/~jberg/gallery/movies/slinkyFlip00.avi (384 kB)
I used a beveled bezier curve for the slinky model. To get it to “walk”, I used vertex keys to stretch the slinky and a lattice to make it curve.
I can’t figure out how to get rid of the bounce at the ends. I think it’s a problem with the interpolation between lattice keys.