I've already figured out a way to very quickly create rust with a few common household items. it works well with metal filings (almost too well, it created an exothermic reaction
), but i have not tried it on any sheet metal yet. There are a few places on the cab that i need to patch to prevent water leaks and I might try treating those areas after I patch them. There a whole lot of those paints available in all sorts of colors and that would be an option if i'm not happy with my results.