The Copenhagen zoo wanted an effective advertising campaign without paying a fortune. The advertising firm Bates Y&R came though in spades.†
Note that this is not a drawing or a mock-up. It’s a photo of the bus on a city street. It’s a fantastic piece of work, and has the advertising awards to prove it.
† Lesley Ciarula Taylor, “Copenhagen commuters get a big, slithering surprise,” The Toronto Star. December 2, 2010.