Oops. Guess somebody already thought of this: The random excuse generator. And check this out: A blog devoted to generators. It links to all sorts of wild ones … including an idea generator … put your name on a plane … The Boobie Name Generator … Bart Simpson writing your sentence on a blackboard.
At least I did think up the The Baby Talk Brand Name Generator, based on the idea that famous names like Google, Barbie and Snapple sound like baby babble.