-her hair used to be long when she was growing up- she and Kai didn't know how to cut it- and she liked it that way. But it got in the way of basically everything since they didn't know how to style or neaten it, so Kai cut it for her. (yes it was a disaster at first but months later it FINALLY looked decent) For a while she kept it short but now she's letting it grow out. (okay that was kinda canon since now she has a ponytail-)
-she dyes her hair a lot with Lloyd, currently sticking with teal because it looks like the ocean
-stealthiest one on the team
(more of a Kai headcanon but-)
-a big reason why Kai didnt want her dating anyone was because one day they went to a bar in New Ninjago City and literally 5 guys tried to drug her drink, which she apparently didn't notice. So yeah, Kai doesn't have that many problems with Jay specifically, but is just worried that he'll do something bad to her
(pre s5)
-For some reason- water seriously helps her calm down. So, when she does get stressed, completely submerging herself in water (bath, shower, the pond they had outside, the actual ocean, etc) helps her not kill anyone
-she had the mole on her face the entire time, but only showed it post-reboot cause she doesn't feel as insecure as before. So yeah, she doesn't wear makeup now either
And...the MOST important headcanon...
-The reason she seems to talk weirdly in the s15 finale, is because now she's a part of the sea, in which the creatures who live there talked differently, like Kel, Benthomaar, and their father.
You guys can request a character for the next HC, out of these guys;
-Morro
-Garmadon
-Bentho and Kel
-Misako
-Jay
-[ninjaofchoice] x Y/N scenarios (not usually what I do but I'm willing to try!)