"Unique Personality Property" This ad highlights the uniqueness of adding lime to Pepsi. It is unique in the fact that it is a new flavor and in the way it is portrayed in the advertisement. Also, it's quite funny :)
A fantastic print campaign for Expedia by Ogilvy & Mather that uses airport IATA codes to form clever travel-related phrases. There are over three-letter IATA codes for airports around the world to sort through and find witty copy.