Heartfelt Creations comes to some of the Milwaukee shows. About a year ago I saw what looked like a metal flower on one of their display cards and I asked if their dies could cut soda cans. I needed to know since I was doing a workshop this past Sept for adult Girl Scouts at Camp Alice Chester and wanted to teach the ladies how to make a soda can pin/hair clip/necklace, etc. The booth told me NO, it could damage the dies. There is a metal sheet just for card making that can be used, but not metal flashing or soda cans.
In my search, I only found 2 companies that state you can cut soda cans or metal flashing with their dies and sizzix is one.
Sorry, I don't remember the second company.