I recently purchsed a few polishes from Rock Star Nails and have been super excited to play with them. All are clear polishes with various glitter and sparkles in them, so it's been super fun lpaying with the layering. After sporting a very bright and in your face look, I decided to go with something a little more subtle, and definitely more girly. I used a light pink opalescent Wet'n'Wild polich that I've had for years (probably more than a decade) and added a single layer of Punk Rock Barbie, and it turned out super fun.
I really like this combination and will definitely be using it again.