Cut 18 slices of bread into rounds the same size as the pineapple slices. Lay pineapple slices on 6 of the rounds. Spread 6 more with filling and stack, sandwich style. Top with remaining bread rounds.
Mix the cream cheese with enough cream to spread easily. Swirl it on the sides and top of chicken-pineapple treats and garnish with olives, carrot curls, and a sprig of watercress.
These can be made up hours ahead of time, covered with waxed paper and set aside to chill until you're ready to serve.
Yield: Makes 6.