Game Day Football Cake

Grease and flour 13 x 9-inch baking pan; set aside.

Prepare cake batter and bake in prepared pan as directed on package. Cool 15 minutes; remove cake from pan to wire rack. Cool completely.

Trim corners and sides from cake to resemble football shape. Reserve trimmings for snacking or another use.

For Chocolate Frosting: Melt butter in a large microwave safe bowl; stir in cocoa. Add powdered sugar alternately with milk and vanilla, beating to spreading consistency. Frost cake.

For White Icing: In a small bowl combine powdered sugar, butter and just enough water to create a smooth consistency. Place in a small, self-closing plastic bag; snip off a tiny corner and use to "draw" the stitches of the football. If desired, place toy football toy decorations around cake.