1 cup crushed pineapple, drained
1 cup small seedless green grapes
2 cups fresh blueberries
2 cups marshmallows, finely diced
1 cup commercials sour cream
3 tablespoons powdered sugar

Mix all ingredients in a large salad bowl; cover tightly and let stand in refrigerator for at least an hour, stirring occasionally. Makes 6 servings.