Bounce is a simple animation I did using POVRAY to demonstrate how animations that use the laws of physics correctly look better. Unfortunately, I've lost the version that doesn't obey the laws of physics to demonstrate that here, but perhaps some time I can render one again.
The ball simply drops with constant acceleration, bounces with some bogus compression, and comes back up with the same constant acceleration. It is lit with red, green and blue spotlights, which is kind of fun to see how the colors mix.