cookies, 1 at a time, with wide spatula and drape each over a clean 1 pound food can; gently pinch cookie sides to form a fluted cup. Repeat to make remaining cookies. If made ahead, store ahead up to 1 day. Makes 6.  GUAVA SORBET MIXTURE  Mix guava nectar, corn syrup, and lime juice.  PINEAPPLE SORBET MIXTURE  In a blender or food processor, whirl pineapple chunks, corn syrup, and lemon juice until smooth.  MANGO SORBET MIXTURE  Peel, pit, and cut mangoes to make 3 cups chunks. In a blender or food processor, whirl fruit with corn syrup and lemon juice until smooth.