Designer nail polish collaborations are nothing new, and despite

Alexander Wang for Sally Hansen: This is the second season Wang is collaborating with the drugstore brand on a polish line. While his spring collection for Sally Hansen is dark and broody, his fall 2012 trio is neutral and...pretty! The colors--which Wang named himself--are Bandage (the rather distastefully-named nude that he used on the runway this season), and Ion (creamy lavender) and Pumice (creamy greenish-gray.

Peter Som for Zoya: This was a blink-and-you'll-miss it collab, which is unfortunate, because the colors were great: Katherine (a light pink that takes on a gel-like finish), Audrey (creamy eggplant), and Evvie (creamy eucalyptus).

Betsey Johnson for Sephora by OPI: File this one under "why hasn't this happened before now," because Betsey always has the best nail art at her shows. The collection will include 7 separate colors (including one called It's My Pink which is scented with her Too Too fragrance), a six piece mini nail polish set, tips, and nail art designs. The zany designer said of the collection in a release: "The collection is just how I like it – loud, outrageous, pretty, pinky, and kickass rock and roll."

Oscar de la Renta: ODLR is collaborationg with...himself this season. While he hinted this past summer that color cosmetics--specifically lips and nails--may be on the way, this is the first evidence we've seen. The colors are Larimar, Aubergine, and Red Carnation and we don't yet have any information about when they'll be available.