This self-explanatory helpful hint appeared in Popular Mechanics 75 years ago this month, June 1943.

If you need to make a tripod to cook over the fire, you can, of course, lash the three poles together. But if you have an empty can, you may as well make use of it. The can has the added advantage of providing a spot to hook the kettle: By leaving the lid partially attached to the can when opening, you can cut a hole in it and hang the pot from that.