Color's, a beauty salon, makes incredible works of nail art. Many of the nails they will put on your fingers are inspired by the hit anime series Attack on Titan. I'm particularly impressed with how the beauticians rendered the Colossal Titan. Like the skinless monster on the show, they're slightly disgusting.
The artists haven't limited themselves to Attack on Titan. You can see nails inspired by Sailor Moon, Dragonball Z, Kill La Kill, and other anime series at Crunchyroll.