Of course everyone should have a good fursona design or forty, but I want to advocate for scribblesonas too. Get yourself a visually simple OC that could be poorly but legibly drawn in 15 seconds. Get yourself a goofy little stick-figure-tier representation so you can illustrate in-jokes with your friends in MS Paint, or on a napkin, or in the margins of your class notes.
In short, I want to encourage the opportunity to decide "I'm in a GONNA EAT ALL THE CHIPS kinda mood" and be able to quickly, shitpostily illustrate it:

(fallen london stamps by