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One can't buffalo buffalo without thinking of the two old standbys:The horse raced past the barn fell.  (http://en.wikipedia.org/wiki/Garden_path_sentence)John while James had had had had had had had had had more fun.  (That one was from an old puzzle book I had—had had?—as a kid.  I find it much like the Buffalo sentence, in that you puzzle over it for a while, are told the resolution, and then say “Huh.  OK, if you say so.”)EDIT:  While my mind's on random funny sentences, this one was an old favourite of my mother's (who taught me all the grammar I know) from Cheaper by the Dozen.  It is the reaction of a child, whose bedroom is on the second floor, on being presented with an unacceptable evening's reading:  “What did you bring that book you know I don't like to be read to out of up for?”