This new twist on the half-moon mani uses patterned nail decals, not plain polish, to create the moon shape. Pair your polish hue and stickers. Hold the decals, rounded-edge up, against the base of your nails, so they take up the lower third—then cut them straight across and set everything aside. Paint your nails with polish, let dry, then press the pre-cut stickers into the base of each nail. Finish with a top coat to blend the two textures together.