We've talked about this thread before so I found as many pics as possible. Found most on Bison Illustrated. Please post any pics you may have. They don't have to be fancy pics... a drunken picture that's blurry will do just fine. The pics below are professional ones. Also I found a ton of pics on Sign A Rama's facebook page... claim them if they are yours!
Rollin Thunder
Bison Fire Truck
The FBC
Unnamed bus?
12th Man Tailgating Bus