While I was looking for the quart of black Benjamin Moore Advance, I saw the chalkboard paint and thought the ultra flat finish could be cool looking, sort of a little like this old Anthropologie iron mirror?
I've said this a million times, but painting mirrors is the easiest project. Just slap on two or three coats, let it dry and then clean up the mirror with a wet rag. The dried paint wipes right off the glass. If you need a little extra help with the edges, a razor works great.
The color is off in these photos and the black is not quite as washed out. I think I really like it in person though.
I need to touch up some places (chalkboard paint doesn't cover very well, not surprisingly!).
I think the matte black is a cool look, especially for my entry. If I want the mirror gold again though when we move, it would be easy to leaf right over the black. The color contrast would be great actually, so no harm done.