I used my Milani 3D manicure as a base and did some cute Santa hat nail art over it.
My inspiration came from Set In Lacquer. She even has a great tutorial if you would like to try this yourself. I decided against doing the snowflake dots around the hat just because my nails are shorter, so I thought it might look cluttered.
The polishes I used for this were LA Colors Nail Art White, OPI Color To Diner For, Milani 3D, OPI Alpine Snow, Sinful Colors Nail Art Pretty Cool.