Watercolor nail art may seem complicated, but you can easily get the look with a sponge and the ability to completely disregard perfectionism -- messy is good. At Tracy Reese (top left), Sally Hansen celebrity manicurist Tracylee used three custom shades to create a pebble-like effect. She painted the nails, and then wiped most of it off with a brush. Meanwhile, at Opening Ceremony (top right), CND manicurists dropped acetone remover on top of still-wet polish to give it a marbleized look. At Nanette Lepore (bottom right), manicurist Julie Kandalec used Essie Mint Candy Apple and dabbed the color with a sponge. And at Rebecca Minkoff, manicurist Michelle Saunders applied a top coat while the Essie colors underneath were still wet. This dragged and blended the shades, making it look like a bleeding watercolor.