I decided to go with a skittle of sorts, starting with an alternating base color of Zoya Dove and Julep Valerie, and then sponging a gradient over the gray using OPI Nein! Nein! Nein! OK Fine! and Essie Licorice, and painting Zoya Dove over Julep Valerie with striping tape.
I really love Julep Valerie. It's a dark greenish teal jelly filled with gold shimmer and little blue hex glitters. It came in my October Maven box. You can sign up to be a Maven and get exclusive monthly polishes here.
Here are the colors I used.
Be sure to check out my previous challenge manicures here.