Avatar God AU (Southern Gods)
I know I've literally got another au in the works already but i don't care man I love mythology and now they're gods >:)))))
Katara and Sokka's face markings are based on the Painted Lady and Warrior makeup (respectively)-- on top of giving Sokka some winged eyeliner to resemble a wolf's markings (as the master of wolves), and a semi-circle on Katara's forehead as a symbol of equality (as the goddess of justice).
Gods don't technically "die" in this AU-- it doesn't happen often, but when it does, they usually become one with their domain. When Gyatso died, as the god of the wind, he turned into the wind and could only communicate through wind chimes (small signs/yes/no-- he can't communicate complex thoughts).
When Kya died, she turned into the starry sky. Hakoda, grieving his wife, would often study her form in the sky and learned to use the patterns of her stars to navigate, which made him become god of navigators.
When Kya died, people started praying to Sokka and Katara for matters of family and home-- it's not actually their domain, but they gratefully accept the duties that come with taking over for their mother.
Katara's necklace has sharp points in this to relate to her mother's star domain.
Katara's cloak is a sealskin (as the matron of sealife)
Yes, Sokka's leg is still hurt in this (still trying to figure out the story behind that, but I love when characters get permanent injuries in media and I'm KEEPING IT) he has a cane-- doesn't always need to use it but he has it!
Sokka's cloak is a polar bear dog's hide (as the god of hunting)