Found a rather interesting one in a picture book called
Heads by Matthew Van Fleet. (See
here.) I've posted two images, but the funny thing about this one is that in order to properly "experience" it, you really have to have the book itself. See, the book has pull tabs, and you pull the tab to "make" the elephant sneeze. (Though I suppose you could sorta create the same effect by clicking between tabs on your browser.)
Click for full-size images.
