Hard Boiled Eggs
Natural Egg Dyes
Vinegar
Vegetable Oil

In a coffee cup, mix about 1 tablespoon of dye with 1 tablespoon of vinegar. Add 1 tablespoon of vegetable oil and 1/2 cup cool water. If necessary you can add a bit more water. You want the coloring to completely cover the egg when put in the cup. Repeat the steps above to make different colors. Experiment with mixing colors. Mix red and blue to get purple, and mix red and yellow to make orange!
Gently lower an egg into a cup using a spoon until the egg is completely covered by the liquid. Remove the egg immediately and pat dry with a paper towel.