Drain juice from canned mandarin oranges and pineapple chunks; set aside.
In a large mixing bowl, mix together whipped topping and sour cream.
Stir in mandarin oranges, pineapple, grapes, raspberries ( or cherries ), and mini marshmallows.
Fold mixture together until well combined.
Cover bowl and refrigerate until ready to serve.
Ambrosia Salad will keep for several days in the refrigerator.