Some DIY hors d'oeuvre battle tops with edible rotors centered on toothpicks:
o Stiff slice of round, firm veggie, fruit, or processed meat -- dry salami, chorizo, new (red) potato, beet, turnip, etc.
o Licorice wheel
o Chocolate pastille
Giving the winner both to eat is pure genius. Unless you use a spicy or nasty-tasting rotor -- in which case, the loser eats both.