Mario Bros. Museum of Plumbing
"Mario Bros. Museum of Plumbing" is a single-page comic in the Nintendo Comics System series, first appearing in Super Mario Bros. #2 and reappearing in Super Mario Bros. #3. The story was written and created by John Walker, Gina Going, Jacqueline Roettcher, Jade, and Karen Merbaum.
Plot
The short story follows Luigi, who offers the reader a brief tour of his and Mario's plumbing museum, featuring historic moments, artifacts, and exhibits of plumbing history. Luigi first shows the reader a caveman underneath a small raining cloud, dubbing it the world's first shower, though he mentions it was a shame there was no soap yet.
Next, Luigi shows the reader several Natives lined up for a drink from "Young Faithful," a reference to the geyser Old Faithful. However, one Indian walks away until ice water is created, as the water currently has a temperature of 212 degrees.
The final exhibit Luigi shows the reader is the one he claims to be the rarest in their entire museum—he then opens the door to unleash the "world's very first leak," with the strip ending here.