Pour some warm water in cups (depending on how many colors you want to make).
Add a few drops of food coloring to each cup (more if you want a darker egg).
Carefully drop an egg into each cup and leave it there until the desired color is achieved (may take a few minutes on each one).
Carefully lift them out using the fork and place on a paper towel to drain.
When all your eggs have been colored, add 1 tablespoon of oil to each cup of colored water and stir gently with the fork.
Take you dried colored eggs and drop them gently into a cup with a different color than your egg. Gently roll around in the cup for a few seconds and then lift out and place on a clean paper towel.
Gently blot each egg with a clean paper towel. Finish the rest of your eggs this way.