In the March 2009 issue of Domus magazine there are two hidden images that are revealed when a number of pages are folded at specific angles. The illustrations of Mr. Web and Ms. Web 2.0 were created by Tobias Krafczyk. This paper interaction was created by the designers at onlab.
This idea of editorial origami could be extended to the design of feature story openers that reveal an entirely new levels of content within the publication. What a wonderful design puzzle.