Cut eggs in half lengthwise and scoop out the yolks into a bowl
Stir in mayonnaise, mustard, salt and pepper
Put 5 drops of red food colouring into a bowl of water and 5 green into another bowl of water. Place the egg whites into the coloured water and allow to sit in the water until the eggs are the shade you like
Pat the coloured eggs dry
Fill the egg whites with the egg mayonnaise mixture
Arrange on a plate, cover and refrigerate up to 24 hours
Recipe by Sober Julie at https://www.soberjulie.com/2016/11/classic-devilled-eggs-recipe-holiday-twist/