A Q-tip and alcohol for the heads.
In itty-bitty vaccuum cleaner thingie or an itty-bitty brush for the other stuff. If I'm wrong, somebody please say so. I've never actually broken anything by trying to clean it, but maybe I was unusually lucky.

I suspect it might be a good idea to tell Rick HOW to clean it, or he's gonna be in there polishing things with the Dremel...