Audcest

Audcest is one of the more unusual pairings, pairing up Audrey from The Lorax (2012) with an alternate incarnation of himself. Although the pairing is relatively rare, it does have a few supporters within the fandom

Normal Audrey
This Audrey is the normal movie, to her love him convecio trees and Ted to get one, painted paintings Truffula trees and Ted helped plant the last tree Truffula. This is the official Audrey in Lorax Fandom.

Queen Audrey
This Audrey is the illusion of Ted, where he imagines kissing her for her birthday, is supposed to be the future Audrey, usually somewhat shy and being more often stay with Ted, but not always.

Green Audrey
This Audrey is the evil version of it, which shows his own evil version is quite similar to Green Once-ier or in some cases is the same girlfriend / wife Once-Ier.

Popular AUs

 * Modern AU
 * Dark AU

Fanfiction
Note: Please add only ones that are part of the RotBTD fandom