Know the dependable "sinkers"--canned apricots, pineapple, peaches, pears, orange sections, grapes and prunes. The "floaters"--marshmallows, sliced bananas, grapefruit sections, mandarin oranges, raspberries, sliced strawberries, nuts, fresh peaches, pears, and diced apples. The salad will make its own layers when chilling.