Here's what Fanlore says about Wrangulator : "The Wrangulator is an imaginary steampunk-inspired machine in which the AO3's tag wrangling team works. The universe was originally imagined in Campfire chat discussions, then established by jinjur in Forma, a tag wrangler RPF fic. Other tag wranglers quickly added stories to the Wrangulator'verse. Black Samvara created fanart of the Wrangulator in quiddity. Awils1 created corresponding RPF that featured the members of the Support team, set in the same timeframe."
For works tagged Wrangulator'verse in AO3, see : http://archiveofourown.org/tags/wrangulatorverse/works