OPI Skull & Glossbones

I recently picked up OPI Skull & Glossbones thinking it would be a good base for something - maybe marbling or some type of nail art. I painted it on to one nail to see the color and I was amazed at how much I LOVE this. It's so simple, and it's not a color I would ever have thought I'd be wearing on it's own, but it's just chic and beautiful.

What polishes do you have that pleasantly surprised you?