First start by taping off the lenses of your glasses so that you won't accidentally ruin them. Put tape over both sides of them.
carefully drip one or more colors of nail polish into the bowl of water, and quickly swirl it using the toothpicks.
Dip part of the glasses into the nail polish I did the lens part last. Put it straight down and leave it unde,otherwise when you pull it back up you'll have a bunch of nasty nail polish stuck to it. Use another tooth pick to lift up all the extra nail polish.
Pour more nail polsich and finish all the rest! Ta-da! Awesome glasses! 8D