Striping tape makes just about anything possible in the world of nail art. Here, Allie from Brit Nails uses it to make a super-precise geometric look. Choose any two glitter nail polishes. We love the deep purple and princess pink combo. Start with the lighter color, and apply two coats. Tape off the section that you want to stay that color, and paint on the darker color. You can finish off with either a matte or glossy topcoat—totally up to you!