Here's what I'd like, and I don't know if it exists, but a way to put a random rotation on an object within gimp. It's really a pain to rotate things manually and hope for randomness, it would be nice if I could get some kind of filter or script that would put random spin on something. Any ideas on that?

It would be pretty easy to go back in and dirty up some of the stuff, I've gotten some good "dirt" overlays that I could just drag onto the sleeping mats.