I use an Imusa aluminum pot that is .7 liters. I bought it at walmart for $2. For my scouts, I recommend about a liter. There are a lot of options. You can even try going to a goodwill or similar thrift store and look through their pot section for small, light, cheap pots.

If you want a pot made from a can...look in the peaches section. The large can is usually about a liter in size. Just be aware that most cans are lined with plastic. You can burn that out if you want.
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