Wet a piece of kitchen sponge in water, then dip it into white acrylic craft paint. Dab the color all over the nail.

Dip a different side of the sponge into a different paint color (pink is shown here), then dab the color onto a specific section of the nail (on top of the white). Repeat with different colors on different sections of the nail. Let dry for about 10 minutes.

Use a striper brush and black paint to create long triangle stripes back and forth horizontally along the nail. Let dry.

Apply top coat.

Add a line of rhinestones vertically down the center.