I'm thinking of building a wood-burning hobo stove soon. What is everyone's experience with these? What works/what doesn't? Any design tips to make it work better?

I was planning on using a round can for the stove, maybe a large coffee can. I was thinking of cutting the can so that there are bent down flaps to hold the pot (maybe a rod going across just in case), cutting the bottom out and raising it about 1" with flaps, drilling holes in the bottom for airflow, and a port on one side to feed wood in without having to remove the pot.