I've used black Sharpies with some success in the past. But, recently I got AMT's Hindenburg airship model. I decided to paint the stand with Testor's flat black paint. I then bought a package of 3 different metallic Sharpies, figuring on using the silver one to highlight the letters on the base. For some reason it did not work. The "ink" (?) came out of the Sharpie very thin and scratchy looking. I ended going back to Testor's silver paint and a very fine brush. And it turned out great. But, I originally thought the Sharpie would make this job a little easier. I wonder why the Sharpie didn't work in this case? I've also had troubles getting Sharpies to work on some chrome.
Scott