This Real Ghostbusters t-shirt features an image of the Stay Puft Marshmallow Man, also known as Mr. Stay Puft. The image on this t-shirt is inspired by the destruction caused by Mr. Stay Puft in the Real Ghostbusters episode titled "Say Uncle". In the episode, Egon's uncle Cyrus released Mr. Stay Puft from the Ghostbusters' containment unit. Mr. Stay Puft went on a rampage before being captured again.