"Carl Sagan is my homeboy". A parody of the commonly seen Jesus Is My Homeboy shirts. Picture of the upper torso of Carl Sagan with caption Carl Sagan Is My Homeboy underneath. Show your love of science and disbelief in pseudoscience, pseudosciences in general, religion and religious dogma, spiritual mumbo jumbo, superstition, myths and mythology, and other related rational improbabilities all at once! Say it subtly, but proud... I am an atheist, just like Carl Sagan.