David Zucker's campaign commercial
It's available on YouTube, and just hilarious. Word is that Zucker, producer of "Airplane" and "The Naked Gun," presented to the GOP, and after they stopped gasping they turned it down. Too bad. It might have been the one campaign ad everyone would have been happy watching.
I remember Glenn Reynold's prediction, during the last election, that future elections would see privately-produced campaign ads that would be more timely, more searing, and far more funny than anything a political party could put out. Looks like that call was right on.