"Here's a neat trick. Mix a few sluggos of 2 different colors together in a plastic bag. For example, if you mix Pink and white sluggos together, the pink will bleed into the white an you will have a marble effect. ( I think this works best with the pink or red and black sluggos bleeding into the white) Green works too."
You can expedite the process by stuffing a bag of them down the front of your pants and going dancing at Puzzles. (Not that there is anything wrong with that.)