There are a bunch of yukkuri who often says something that is unique to them.
I thought of listing them for reference, and maybe discover some more if you guys know any.
"ze" is Kirisame's catchphrase too.
For the most part, she's lost in translation.
Reimu almost always end her sentences with "da yo", and some artists have played on this by making her say it like Marisa's "ze".
Something like "かわいくて ごめん ね！ だよ！" (sorry for being so cute! da yo!).
The problem is that "da yo" often is actually part of the sentence ("da" is a verb), so it can't be written as-is but has to be translated
She's very city-sect. Definitely not a country bumpkin.
Also "nhoooo" I guess.
She gets it.
YoumuEven the actual half-ghost gardener goes "myon" in pretty much every fanwork.
The yukkuri goes "dick!" too.
PatchouliI wonder what ZUN was thinking when he made Patchy go "mukyu" after you beat her.
RumiaIs that so?
Aya/KimeemaruOhh, catchphrase, catchphrase.
SanaeThe japanese language has different words depending on how polite/humble/formal you have to be, and Sanae usually uses very polite words, compared to other yukkuri, so I believe we can consider this her "catchphrase".
Remilia & FlandreU~ u~ u~!
Also Remilia goes "dado".