Todays current pop cans are made of real thin aluminium. I find this makes for a cheap source of metal for tank fenders, armor skirts etc. It bends and shapes easity whcih is great for showing damage. One guy pointed out to me that he runs flame over it to get rid of the varnish and plsic coating to aid painting. Hey for 35 cents or so you get the material as well as a drink. What a deal....beats a PE set at $20.