Evansville, IN Unofficial City Sandwich: Fried Brain Sandwich
http://en.wikipedia.org/wiki/Fried-brain_sandwich
I cringe every time I see an ad for those things!
(Side Note: A long time ago, my family ran out of food so we put together what we had left: Mayo + PB sandwiches. Seriously, I’d rather go hungry than eat that nasty thing again. I'm literally getting sick thinking about that experience.)