This is very costly. Not from football, but if you do it for football you have to for every sport.
I think these are paid for by a lot schools by corporate sponsors and not the athletic department. Because of this you do not need to cover all sports.
My office used to co-sponsor the posters for both UK football and men's basketball. Each of the posters would also have the company logo. They are very costly, but also very popular (at least here in KY). The only probablem for me, they're UK...