How do I get the power room I want? I ask myself this almost daily.
I need gloss black paint and a marble sink with brass hardware and a modern toilet. The toilet is important. It must not have any sides that I'd have to lean over in about three inches of space to clean.
I'd top it off with a tiny chandelier like this one.
Then I'd add a painting with feeling like this one called Black Palm.
It's pretty moody but in a tiny little powder room I think it works.