Planet Sub has turkey subs for $2 the day after the Kansas City Royals win a game. To save you the hassle of having to track down a score, some friends set up this site a couple of years ago:
Is it a Royal Turkey Day?
There is a rumor that some nefarious types have recently set up their own version of this classic site, but ACCEPT NO IMITATIONS. Plus, the graphics on the original site are far superior.
Now if the Royals could just win a game, I could save some money on lunch...