Where can I find an old empty oil drum?

I'd like to set it sideways (with a slight upward tilt) on a rig with some rollers attached to a wind turbine, then fill it with compost and let any small, brief wind gusts we get rotate the drum to help break-down the compost.

Should I try an auto-salvage yard?Where can I find an old empty oil drum?
Call 1-800-776-3786 , 716-892-3296 , 1-888-978-7759 thy may help you from hear.

d3100