I would like to know if any of you guys know of any companies that makes barrels, buckets and small items that go on 1/72nd scale tanks?

hi jody,i know it might be a bit late but i have only just found your request for help.i do'nt know of any specific companies that make those items,however i usually use "scratch" items for the same or similar things.my main source for these items is the old transistors from old computer/radio circuit boards.hope this helps ...geoff

Hasegawa makes a 1/72 Field Accessories kit which has drums and jerrycans.

You could also try S or HO Scale Train stuff. I've seen sets of Barrels, Drums, Pallets, and Boxes at Hobby Lobby.
Or get a detail set from an on-line shop such as Scenic Express: HO-SCALE SMALL CARGO AND CRATES .
or Roll Models: 1/72 Mil Vehicle Stowage/Cargo/Access, 1/72 scale, Verlinden
EDIT - and I found this set from IMEX on ScaleHobbyist that might work: American History Battlefield Accessories detail set