In a large bowl, fold together the Cool Whip and sour cream.
Fold in oranges, pineapple, cherries, marshmallows, and coconut.
CHILL, GARNISH, AND SERVE:
Cover with plastic wrap and chill in the refrigerator for at least 1 hour before serving.
Garnish the ambrosia salad with mini marshmallow, shredded coconut, and maraschino cherries
before serving (all optional, but they sure make the salad pretty!).
Serve and enjoy.