Egg Eyeballs

I have a little boy that loves anything gross. Eggs are his favorite food. So, I make egg eyeballs sometimes!
For each eyeball, you need
1 egg
1 slice olive (the pic had green w/ pimento, but Ive done black, too)
Food coloring.

Boil eggs for about 5 min. Remove from pan and add a few drops food coloring to hot water. Crack shell, peeling little pieces in places. Place egg with cracked shell back in colored water. The longer they sit the more intense the color. After removing from color, rinse with cold water. Remove shell. Use toothpick to secure olive, or slice egg in half and place olive on yolk.