I was browsing the TTA Fanfic Archives, when I came across one of the greatest TTA stories of all time: Mondo Negatory Tiny Toons!
This was a collaborative effort between HKUriah, Mike Cote, Rebecca Littlehales, John Friedrich and Mike Demico. It was one of the few stories that took the idea of a dystopian cartoon environment and got it right. It didn't try too hard to be dark and edgy.
Anyone who wants to write about a parallel universe should check this out if they want to see how it's done.
This artwork, done by the legend that is Thorne, perfectly shows how awesome this story is!