What you need:
- Base colour polish (I used Pahlish Though Still And Storm)
- Marbling polish(es) (I used Sally Hansen Black Diamond and Sequin Frost)
- Plastic container
- Room temperature water (filtered works a bit better, but not necessary)
- Pump (not aerosol) hair spray (I used Herbal Essences Set Me Up hairspray)
- Top coat
- Clean up supplies (cotton pads, nail polish remover, etc.)
Step 1: Paint your nails with your base colour and let them dry completely.
Step 2: Put some water into your plastic container (ignore the black polish drop at the bottom, the first kind I tried sank).
Step 3: Drop some some polish onto the water surface. Don't hold the brush to high above the water or the polish will sink to the bottom. I found 3 drops worked well for the black polish.
Step 4: Wait a few seconds until the polish spreads out.
Step 5: Spray a single spray of hairspray at the polish. I found spraying from about 6" away worked well.
Step 6: Wait a few seconds for the spotted pattern to form. It won't look exactly the same every time. Either of the two pattern types below are fine.
Step 7: Dip your nail into the polish pattern. I found that holding my nail at a slight angle and dipping it straight down worked well.
Step 8: While your nail is still underwater drag a toothpick around your finger to gather up any polish that's still floating.
Step 9: Pull your finger out of the water. It's gonna be messy.
Step 10: Repeat for all of your nails.
Step 11: If you want a second marbling colour repeat again for all of your nails with a different polish colour.
Step 12: Clean up. I used acetone remover and cotton pads to clean up most of the polish off my skin and then used a q-tip dipped in remover to clean up close to the edges.
Step 13: Add a coat of your favorite top coat.