Hard boil 1 dozen eggs. Slice each egg in half forming 2 half ovals. Remove yoke. Chop up yoke and set aside a bit for later. Mix the yolk with a bit yellow mustard forming a paste. Slowly add in blue food coloring and mix to form a blue color. Slice 12 black olive and pit if pitted. Use a mellon baller to carve out a round hole in the end of each egg. add in blue york. push an olive in side the middle of the blue yolk. makes 24 Baby Blue Eye Balls.