This Stay Puft Real Ghostbusters T-Shirt features an image of Mr. Stay Puft, the seemingly harmless mascot for Stay Puft Marshmallows. Unlike the original Ghostbusters movie, in the animated Real Ghostbusters series, Mr. Stay Puft was a kind giant who worked with the Ghostbusters in the episodes "Sticky Business" and "The Revenge of Murray The Mantis".