Sketch out the design of your sign. The most familiar defense sign is the letter “D” and a cutout of a picket fence. Trace the “D” out with a pencil. Sketch the fence using a ruler or yardstick.
Determine the dimensions of your sign. Make it compact enough to be allowed into the stadium, but large enough to be seen from the field.
Draw the designs on a piece of poster board. Use thin poster board as thicker types, like trifold board, will not be allowed in most games.
Cut the signs out with scissors or a hobby knife.
Paint the sign and attach other ornamentation. Use bold colors to help your sign get noticed.