It's so easy!  Just sell as many General Tickets as you can and a portion of all the tickets YOU SELL are credited to YOU!  Ask everyone you know....fellow non-band students, family, friends, co-workers, neighbors, etc.  Post it on Facebook, Twitter or whatever means it takes to get the word out.  Collect the money for the tickets you sell, and during the week of the game, you will get the tickets to hand out.