Hammerite comes in a variety of colours both smooth or hammered finish. Although it's expensive, it is quite tough as long as you have a compatible primer to support it.
It's impressive when sunlight hits it so I'd imagine stage lighting would have a similar result.
It is excellent for painting directly onto metal that has had the loose rust removed with a wire brush. It works well with plastics when you use the appropriate primer. I'd happily use it on a cab. It does take a while to fully cure however. You will need good ventilation too. It stinks for the first few days.