I don't love emojis for this purely because they're graphically inconsistent; I can't style them with my terminal font or colour scheme. But I'm a huge fan of using various (single-width) unicode chars with colour to make terminal output a lot easier to parse, visually. Colour and iconography are extremely useful.
Hieroglyphics are vastly underused.
Love it, first time I see that online on forums (genuinely). Gives ideas for Reddit posts
U+130B9 is probably a good one to start with over there.
(Nsfw)
what isn't in the unicode standard these days???