The secret is out: our favorite summertime fantasy involves scales, seashells, and metallic makeup fit for a nautical adventure. And with the help of Make Up For Ever Aqua Shadow ($20), some of our mermaid dreams are coming to life. This shadow pencil comes in matte and metallic colors that won't budge as you plunge into the depths of the sea. But if an oceanside vacation isn't in your plans, then this shadow will also stand up to a sweaty trek along the city streets. The small crayon tip allows for easy application on both top and bottom lids — meaning you can try out all the season's colorful makeup trends, from winged shadow shapes to under-eye color. Dive right in.