I love polka dot nails so I decided to do white and purple polka dots! The white is by Sinful Colors-Snow Me White. Sinful colors is a great brand, the polishes have a really good consistency. The purple I used didn't have a brand , just some cheap little polishes I got, but the cheap polishes are REALLY good surprisingly, and the purple smells like grapes too :P. For the polka dots, I just flatten the end of a tooth pick a little, and dot it on my nail!
Some pictures of my nails (Sorry for the quality) :