get a rolled up newspaper, dunk it in a bucket of water.. i find the guardian nice (phat), and wack it against cardboard boxes of various sizes.
Mike it up so that you get samples from inside the box (bass'n'mids) and outside near where the newspaper makes contact (mid'n'top end/transient).. then mix the two signals. Dont forget to compress whilst recording so to get a hot signal.
I cant remember where I heard this but have tried it.. its dope.

ps.. sample aerosols/spray cans for hi hats. sweet clean hats. Bo!!