Aluminum foil is a lot easier to work with than soda cans. I’d imagine that you could use an ordinary hair comb to “corrugate” foil. Try spraying with Dul-Cote, and then weathering with rust-colored powders to get some rust. Or, use a thin wash of rust paint.
Here is a link to a post with lots of good pictures showing how to make a simple little corrugating tool. You have to have an account there to see the post but signup is free.