For the NCAA Promo - I thought one of these two incentives would be nice - the first one probably makes the most sense and gives members who ended up with a low seed something to cheer for.
$100 gift certificate for the lowest ranked team to win a game (i.e. the initial round of 32 games). So if you had the #15 seed and they knocked off #2, and no other #15's or #16's won, you'd win a $100 gift certificate.
Also thought about the lowest ranked team to make it the furthest (but that doesn't set a definitive round...i.e. a #12 makes the Sweet 16, but a #8 makes the Elite 8, a #4 makes the Final Four, #2 makes the Final, etc.)...could say the lowest ranked team to make the Sweet 16.