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HOW-TO: First you paint a regular coat of dark polish all over your nail. Quickly put a few small dots of lighter polish on your nail while everything is still wet. Swirl them together to create a marble effect with either a fine brush, a toothpick or a needle. Easy! The more you mix them together the more subtle the design will be, the less you touch it the more dramatic it will be.

Galaxy Nail Art Tutorial

Spray PAM on wet nails, wipe it off, they're completely dry! Must try.