Designer Marco Ugolini demonstrates the proper way to hold a poster within a poster within a poster etc. Via his web site:
Contribution for the exhibition Connected Project in Breda, the Netherlands, 2010. Here, I make a statement on the relation between the graphic designers and the poster as a media. This is a poster of me holding a poster of me holding a poster of me holding a poster, and so on.
As part of the Dogwood Initiative’s No Tankers campaign, creative agency Rethink Canada designed these oil tanker posters printed with water-soluble ink that when exposed to rainwater proceed to bleed onto everything below them, simulating the potential for oil spills in the region. (via i believe in advertising)