Marvelous Fruit Mix-Up

Yield:	8 Servings
Categories:	Salads, Desserts

3	oz	Lemon-flavored gelatin; (1 package)
2	c	Ice cubes
8	oz	Sour cream; (1 container)
20	oz	Crushed pineapple; drained (1 can)
11	oz	Mandarin orange sections; drained (1 can)
1/4	c	Walnuts; chopped
1	c	Miniature marshmallows