In discussing the graphical legacy of National Lampoon, DesignObserver's Michael Bierut pulls a quote from Tony Hendra that could have appeared in a brief for 2 Live Crew:

"Any graphic form, and indeed any print form, had to look like the original on which it was based, whether it was a postage stamp or a Michelangelo or a menu. Only thus could the satirical intent come through with crystal clarity."

I know that this is a comment about satire - not parody as in the case linked above - but it supports the requirement for formal correspondence between a parodical work and its target as well. And how cool would it be to cite a National Lampoon historian in a brief?
.:link:.