Here is a very creative idea for an advertisment from Saatchi & Saatchi for Papa Johns in Peru. It is simply an adheisive cardboard piece that sticks to a door making it look like there is a pizza delivery person on the other side. It is definitely unique! But is it a good advertisement?
This ad relies on the customer seeing it as they look out from the door. If the customer is not home at the time of the placement, all they see is a piece of cardboard stuck to their door.
And what about safety? Peepholes were designed so that you could see who was on the other side of the door before opening it. Is having an advertisement stuck to the other side a major obstruction to the customer's safety? Even if its not a major obstruction, could it cause the customer to perceive it as an obstruction and thus result in negative attention?
So the effectiveness of this advertisment is debateable, but it has earned a spot here for its creativity.