Using any polish of your choice pour onto a flat surface, take one of those spongy eyeshadow applicators and dip into the polish, dab the polish on your nail concentrating at the tip and moving slightly upward. Repeat until you get the desired effect. Put a topcoat over the entire nail.
Cool nail polish changes color with your temperature - Nail polish junkies, we'd like you to meet Shade Shifter from Orly, a new color-changing gel topcoat that changes pigment depending on body temperature and chemistry. Nope, it's not "mood ring" technology. This topcoat transforms into a fantastically new shade in the same color palette — darker if you're cold, lighter if you're warm.