basic egg dyes in desired shades
1 teaspoon to 1 tablespoon vegetable oil per dye cup
You can "marbelize" a plain white egg or give it a base color (make sure there's no oil in the dye for the base color).
Once you're ready to start marbelizing, stir 1 teaspoon to 1 tablespoon of oil into a cup of egg dye. Quickly dip your egg in and out of the dye. The dye will adhere, the oil will repel, creating the marble design. Keep dipping for more intense colors. You can also let the egg dry and re-dip in a second color. Repeat as many times as you feel will make a gorgeous egg. When finished and egg is dry, take a paper towel to get the excess oil of the surface of the egg.
Different amounts of oil will result in more or less marbeling. Experiment to find the mixture that you like best. Remember you can always add more, so start conservatively.
The principle behind these spectacular Easter eggs is simple: oil and water do not mix. Marbled eggs look great and are easy to make, but it's best to leave them as the last egg design you're going to make, as once you add the oil to the egg dye, it's pretty much useless for any other designs.