In a bowl mix in the water and red food colorings together.
Use a spoon to crack the eggs all over.
Place the eggs in the bowl of colored water and place in the fridge for 2 hours. If they aren’t fully submerged in the colored water then turn them halfway through.
Take the eggs out of the colored water, dry off and peel the eggs.
Gently cut the eggs in half.
Scoop out the yolks and place them in the food processor with the mustard, mayonnaise, paprika and a pinch of salt and pepper. Blend until smooth.
Place the egg yolk mix into a piping bag.
Pipe the yolk mix into the holes in the egg whites.
Use a very sharp knife to cut a thin slice of tomato peel off the tomato and shape it into an arrow for a tail and 2 triangles for horns.
Place the cut-out tomato shape into the yolk mix and serve.