what is your favourite uncommonly-used unicode character? mine is 🪤 (it's a mouse trap emoji, i like how there's a tiny little piece of cheese that resembles the cheese emoji, it creates a nice sense of consistency between them all like it's a hieroglyph inside a larger hieroglyph)
i generally don't like uncommon emojis, because they are less likely to be available on your recipient's device. but how about ə