1To assemble football field: Spread guacamole evenly onto rectangular serving platter. Spoon sour cream into decorating bag fitted with writing tip. Pipe goal lines, numbers and borders onto guacamole.
2Cut 6 (1 3/4x1/2-inch) strips from bell pepper. Place 2 strips on each side of field for goal posts. Pipe small amount of sour cream on each bottom corner of remaining 2 bell pepper strips; place on tops of goal posts. Cut carrot in half for safety cones; place on one side of each goal post. Place 1 pretzel nugget on each end of the field. Arrange broccoli florets and tomatoes along side lines for people. Serve with additional vegetables and pretzel nuggets.