European military mess tins. I like the older ones with the stamped handle, but the newer ones with the wire handle are easier to find now.

There are also the Sigg boxes, but CDT and Sportsmans Guide usually have a better price on the mess tins than I ever seen on the Sigg boxes.
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-IronRaven

When a man dare not speak without malice for fear of giving insult, that is when truth starts to die. Truth is the truest freedom.