Drinking Water Containers

I may be getting access to some old metal drinking water containers. All are in good shape no rust. They have been stored in the basement of some barracks. Ill try to get some pics and post them if anybody is interested in purchasing them. They are not big but would make a good mini USD in my opinion......but Im a greenhorn around these here parts.

Was just thinking, even if they are lined or to small, they would make a great firebox.