There's a tune called "Squirrel Heads in Gravy". We get a lot of mileage out of that. That, and graphic descriptions of the ingredients of scrapple, which is a novelty to the city kids around here.

When my brother was doing the [American] Civil War thing, the favorite put-down was "farby", as in cheesy, inaccurate, Gone-With-the-Wind-esque, etc.