Listed here are some examples of gallon breweriana other than signs/displays and boxes.
BridgePort Beer Tap (a tough one to find the box for)
Conax Tap handle
Tap-A-Keg Beer Tap. There are at three different versions of the box that I'm aware of.
Knickerbocker Beer Gallon Can Cooler Bag. This kept your Knickerbocker Beer nice and cool until you could get it home to drink.
Koch's Styrofoam can cooler. Gallon can slide in and kept your beer nice and chilled (in theory)
Kegl Brau Pamplet on "What you should know about" Kegle Brau DRAFT Beer - Pretty uncommon
Hudepohl Cincinnati Royals Schedule