This ad always cracks me up. Well, as a VisComm student, part of our curriculum includes constructing proper commercials to fully demonstrate the appeals of certain products and/or companies. And I've found there are a lot of amusing and neat advertisements on the boob tube.
So, ever seen a commercial hilarious or effective enough to make you support the product/company it advertises?
http://www.youtube.com/watch?v=kzOIrrGfjRE
This one was shown locally for a time, and endorses crackers. Its a simple, but effective ad that many people find funny enough that its easily remembered.