Sleeping Warrior

Desert Mermaid is the femslash ship between Aurora and Mulan from the Once Upon A Time and Disney fandoms.

Canon
Mulan met Aurora some time after Prince Phillip invited the female warrior to join him in his task of finding Aurora when the princess was under the sleeping curse.

Fanon
While the ship is commonly focused on OUaT's version of the two, there are fans who use ship and its commonly used title with Disney's versions of them within the Disney Princess part of the Disney fandom, since the ABC television series has its own versions of the Disney characters and has a few traits from its series; and it being the live-action show that helped to trigger the ship or had helped to make it popular in both fandoms.

Fandom
FAN FICTION

DEVIANTART
 * Mulan-x-Aurora club on DeviantART

Trivia

 * In the Disney film, Ralph Breaks the Internet, Aurora and Mulan appear as online versions of themselves known as "netizens", the inhabitants of the digital made world that lies within the real-life internet. Where they are two of the fourteen Disney Princesses that are from the expo-like Disney website, Oh My Disney.
 * Both Aurora and Mulan appear in the Disney Junior series show, Sofia the First, when the Amulet of Avalor summoned them to aid Sofia.