What to do with old 9 inch drums?

on a cold and dreary day, you march those right out to the edge of a lake and under the grey oppressive sky you heave them with all your might into the murky water, and as they sink into the darkness you mutter: see you in hell...

all kidding aside, somebody might want that stuff if they're keeping their ride all OG. the knuckles have some worth because there's disc kits that fit them. but realistically any shipping on stuff that heavy would kill any kind of deal.