For the Vanilla Marshmallow Creme, beat marshmallow creme, cream cheese and vanilla in large bowl with electric mixer on medium speed until well blended. Gently stir in whipped topping until well blended.
Spoon 2 tablespoons crushed graham crackers into each of 8 dessert glasses. Layer each glass with 1/4 cup Vanilla Marshmallow Creme, and 2 tablespoons each chocolate sauce and crushed graham crackers. Top each glass with 1/4 cup Vanilla Marshmallow Creme. Garnish with graham crackers and grated chocolate, if desired.