If you go to the local hardware store you can buy new, empty paint cans in various sizes. They have very strong rims and make good stoves, and seem to last longer than ordinary tin cans.
My very favorite stove is the Little Dandy design by Nimblewill Nomad, www.nimblewillnomad.com, which is cut out of sheet metal and so takes down into a flat compact package for transport. The design can be upscaled or downscaled to suit your size needs.

That reminds me of the one John D McCann had in his book that used a quart paint can as sleeve, a NuWick 44 as the heat source, and a coffee can as the pot. He used a couple of pop rivets to keep the pot off the bottom of the stove and the candle- put them a little higher up and it might not make a bad wood burning set.

Neat! Google books has his book. Or at least the portion in question.