[God luvs America]

Actually this is what i've done the very few times i've encountered this. When i was told "i identify as this/that, please refer to me as this/that" I've replied: "I identify as religious royalty. Please refer to me as "Your Holiness. Thank you."

Only happened about two times but i wish i had a camera to film the reactions.

[Svartalfiar]

I just saw this somewhere else, but another good option is to tell them your pronouns are I, me, and my.

Then just sit back and watch!