I had a paint stick. Kinda like a Magic Marker. Over the last 32 years, the motors been painted a few times. Everything from rattle can to brush touch ups to Plastidip. Before repainting the first time, most of the original paint had fallen off the heads. Nowadays they call it "Patina". To me it was just ugly. If I live long enough to ever need to get into the motor, I will properly repaint it gloss black while its apart. So far, I don't see that happening any time soon. Fortunately..