Get the airbrush. I just got one and it's a hella fun. Didn't cost much either, I got the airbrush, hose, two canisters, co2 tank, and two paint different colors of paint for 43 bucks at hobby lobby. The one I got doesn't even need to be cleaned, the paint is fed through the canisters. i expect to make a decent chunk of change with it by detailing stuff.