Here's a polish that is pretty popular on NB, but I wasn't too fond of on myself. I think gunmetal is a lost cause for my skin tone. I picked it up at Marshalls (of all places!) packed with OPI Mod Hatter (a sheer, shimmery nude). I ended up sending the sheer to a muggle friend, and waffling on keeping BNS ever since.
OPI Brand New Skates
I think I might let this one go.