Deviled Easter eggs! Fill glass containers with water, and add several drops of food coloring to each one (plus some vinegar--optional). Place the egg halves in the water, making sure that the entire surface of each egg is covered. Let the eggs sit at least one hour, or until you achieve the desired effect. Remove the egg halves from containers and drain on paper towels. Fill halves with egg yolks prepared according to your favorite deviled egg recipe.