Let stand a minute before eating. Combine yogurt, peanut butter and sugar in a small bowl. Cut four large squares of plastic wrap. Put cup cereal on each square. Insert popsickle stick in one end of each banana.
Twist ends to hold.
Freeze or refrigerate until ready to eat. With sharp serrated knife, cut into quarters to serve. Preheat oven to 400 F. Butter a rack and set in a jelly-roll pan. Spread each slice of toasted bread with 2 teaspoons preserves. Top each slice with slice turkey ham, a slice of pineapple and a slice of cheese.