Blue Polka Dot Nails

1. Paint 2 coats of a turquoise polish, such as OPI Suzi Says Feng Shui, on each nail.
2. Using the end of a paintbrush, create polka dots on each nail using a cobalt polish, such as China Glaze Frostbite, a navy polish, such as Chanel Black Satin, and a white polish, such as OPI Alpine Snow. 
3. Finish with a top coat.