For all flags I couldn't find a source for. I do not take credit for the original ideas, This is just re-coining what they mean to me.
Chocobunic :
A gender related to chocolate and bunnies,
specifically related to chocolate bunnies you
can get during Easter.⠀
Imaginarygender :
A gender that feels like fantasy, one that
can feel make-believe or imaginary. A gender
centered around feeling fictional.⠀
<3gender :
A gender related to the emoticon '<3', a
gender that is very loving and affectionate,
can be related to love notes.