If you guys are interested in it enough, if you have an extra POTF2 Death Star Droid, you can actually remove the black finish and get a completely chrome droid underneath. Customizers found that little trick out some years back.
Nail Polish Remover should take the black coating off and reveal the chrome... You'll probably have a tough time getting some of the black out of the recessed areas but it actually looks like wear & tear then too, an added bonus. I've seen a couple customs like that over the years and they look pretty sharp.