Ambrosia Holiday Fruit Salad

1 cup sour cream
2 cups sweetened whipped cream (or whipped topping)
1 (20-ounce) can pineapple tidbits, drained
2 (11-ounce) cans mandarin oranges, drained
2 cups sweetened flaked coconut
2 cups mini-marshmallows

In a large mixing bowl combine sour cream with the whipped cream. Add remaining ingredients and gently fold until just combined.
Pour into serving dish. Cover and refrigerate at least 2 hours before serving.
Makes 8 to 10 servings.