Try an exchange program
Why waste your time when you could be fishing? This is what I used to do when there was so much bunker around that I had more than I knew what to do with...
Find a bait station who grinds his own chum. Ask him if you were to bring him a tub of bunker would he sell you a can of recently ground chum for a few dollars. Otherwise, pay the $15 to $22 bucks and keep your hands clean.