Tavis sez, "A mind-blowingly recursive poster that represents the AD&D rules for procedural dungeon generation as a flowchart which is drawn as a dungeon. From the The Mule Abides blog at NYC's intersection between role-playing games, the gallery art scene, and how Kickstarter can jam 'em together. Cory's linked the Mule before as HOWTO have a D&D party for 8-year-olds; also featured in this post is a nifty Kickstarter for the first publication from the Play-Generated Map and Documents Archive, similarly linked for Homemade D&D module, 1981."
(Thanks, Travis!)
