Hi! Just found out about this last night and instantly got obsessed, made a cute model and everything!

I do have a suggestion: automatic rotational movement! Like for pendulums! I think it would make a lot of dangly objects on models more lifelike~

This is a feature request I also agree with. 

I was a bit surprised to find the rotational movement seems entirely dependent on the 'bounce' physics when you can apply ambient x/y movement. Why not have the same for rotational moment too? Some kind of frequency and amplitude bars for rotation would be nice.