The Viz-O-Matic: The Dangers of Glitziness and Other Visualization Faux Pas, created by Wayne Lytle in 1993 at the Cornell Theory Center, is a great parody of scientific visualizations.
I especially like the part with the overweight snowflakes and the googol seconds.
(glitz: ostentatious tasteless showiness, flashiness)
Using visual explanations to create learning 