Thoroughly drain all canned fruits and pat dry with paper towels to remove excess moisture.
In a large mixing bowl, gently fold together the Cool Whip and sour cream until smooth and fluffy.
Carefully fold in the pineapple, mandarin oranges, maraschino cherries, mini marshmallows, shredded coconut, and optional pecans.
Cover and refrigerate the salad for at least 1 hour before serving.
Garnish with extra cherries or toasted coconut for an added touch before serving.