Use a regular egg dye kit. Add your color tab, vinegar, and hot water to a cup. Now place one teaspoon of margarine in the cup and let it melt. Now when you dip your eggs in , you will get a nice swirl effect!
This is a great idea for helping kids color their easter eggs. Insert an egg in a whisk, then let the kids dunk to their hears content! Now there is no worry about eggs dropping off of the egg dipper or a spoon.