Ice bottom 6th of 1-layer sheet cake green and remainder of cake blue. Pipe tip 1A band goal post. Sprinkle Rainbow Nonpareils on blue iced area. Randomly pipe tip 233 pull-out grass on bottom of cake and at bottom border.
Ice football cake smooth. When icing begins to set up, imprint dry paper towel to achieve football texture. Pipe two tip 6 center lines, overpipe with tip 4 stitches. Position football cake inside goal post on sheet cake. Print tip 3 message. Position candles.