Elsacest

Elsacest is one of the more unusual ships in the fandom, pairing Queen Elsa from Frozen  with an alternate incarnation of herself. Though not widely popular in the RotBTD fandom, this pairing has a standing among those who prefer the movie alone. Much like Oncest, Hiccest, and Frostcest, this pairing is frowned upon by some, but still has many loyal fans.

Popular AUs

 * Frozen AU
 * Genderbend AU
 * Dark AU

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