This instalment from Ikea is an impressive way to do out-of-home promotion and beats the bus shelters I've seen done up in Australia (which never seem to make it to Melbourne - probably because we don't use buses!). It's quite old, probably from a campaign in New York in 06 I believe just after doing a quick search. Nevertheless, I really like the idea. Who cares if the product gets damaged or stolen, being cheap and cheerful.
(Thanks to Flickr for the photo).