drumheads:
You can cut them up into strips for snare-wire straps, or damper ring for your snare

Sticks:
Wood Filler, Pet Bedding, Spill Absorbent, Composting Aid, or perhaps make a fire starter?
I know that it'll take a while to get a useful amount of saw dust from hitting the hi-hat, but if your bass-player is into Tony Levin, he might find use for the bottom half of old sticks to make a set of "funk-fingers".

Shells:
I know that some like to use old drums for wastebaskets and coffee-tables, but personally I'd rather restore an old drum to it's former glory or donate it to someone who can use it to play on.

Let me know if I'm missing something