I pulled an old AMT Ford Shoebox out a while ago with the intent to do a custom with it. Decided to just rust it last Sunday, and I worked the whole week through, slowly making it better. I slowed down on the dent process, and hit the hot spots with a Matchbox car, something I picked up here. It worked nice! Many coats of matte clear, rust chalk, rust paint, and dirt later, it's not perfect quality but better than my previous ones.