So my daughter is a senior in HS, and just got a recruiting postcard from Indiana offering a pair of free tickets to one of three games, including Michigan. We filled out the form online, and now have a ticket to the game for both of us. It includes a IU sponsored tailgate as well.
Catch: you obviously will have to sit through a recruiting spiel, and you have to know someone who IU wants to recruit as a student. But the "guest" coming along can be anyone. So if you have a younger brother or sister, or a son or a daughter who's a HS senior, and you live within driving distance, this is a cheap (free!) way to get a pair of tickets to the Michigan - Indiana game, and a meal to boot. Smacks of a timeshare sales pitch, but I can live with that. It's bonding time with my daughter, after all.