Peel and core a pineapple. Take half and chop finely; thinly slice the other half. Stir the lemon juice and sugar together in a large punch bowl until the sugar is dissolved. Add the chopped pineapple, light rum, anejo rum, dark rum, pineapple juice, orange juice, nutmeg, cinnamon, mace, allspice and club soda. Stir well. Add one large block of ice. Garnish with pineapple slices. Makes 35 (6-ounce) punch cups.