In my early hiking days, I used a pot made of a tomato can; I think it was a 303 size can. The top was removed leaving the rolled rim, I punched a couple of holes just under the rim for a wire bail and used a lid from a coffee can (IIRC) to make a primitive lid for the pot. The whole thing only weighed about 5 oz. I used it almost entirely to cook over cook fires although it had a few turns on a Coleman 2-burner and worked just fine. After a few years, it really looked like heck but it always worked and the price was right. I actually carried it in a paper lunch bag to keep soot off my other gear.