Cut a thin slice from the wide end of egg so it stands upright.
Slice egg horizontally, about ⅓ up from the bottom.
Place a tomato slice on the bottom piece of egg. Insert toothpick upright in the middle of tomato slice and egg for "spine." Reattach top piece of egg.
Using dabs of mayonnaise, attach slices of olives for "eyes" and peppercorn for "nose." Attach parsley for hair and stick 1 whole clove on each side of the egg under tomato slice for "bolts."
Pipe mayonnaise "teeth" on tomato slice just before serving. Repeat for all eggs.