In the 1970s and 80s BMW invited some of the worlds best artists to use Le Mans BMWs as their canvases. The result became the BMW Art Car exhibition. To promote it when it came to Auckland, they commissioned local artists to take existing BMW billboards and turn them into art. Credits: Agency: Colenso BBDO, New Zealand
Campaign for Vancouver's Sculpture Biennale where three-dimensional posters for the festival, were spread throughout the city. With a tagline like "Art that you can feel," The 3D posters also featured empty pedestals - the kind you use to display sculptures -- so that passersby could leave something of their own (personal or found) on them. This, in essence, made people the artists, and what they left on top of the pedestals became their art. The wall becomes an interactive public gallery.
A British chocolatier Thorntons created an 860 pound (390kg) pure chocolate billboard in London that was 14.5 ft by 9.5 ft large and made from 10 chocolate bunnies, 72 giant chocolate eggs and 128 chocolate panels. The billboard took three months to build. It was eaten in three hours.