I slapped my forehead. Of course, why didn’t I think of that?
Four Nakayas now nestle in the five-pen case. (The araishu, which I use least often, stays in its kimono.) The Oldwin has to remain in the largest slot, and even then has room to wiggle.
The Nakaya pen kimono is one of the sweetest gestures ever made by a pen brand. I like it. It is culturally and functionally appropriate. Having five identical kimonos in my bag, however, can be challenging. I differentiate them by the level of wear to the printed gold squares, and by the shape of the pen inside; still, when I’m being asked to fill out a form or sign a document, it does take more time to choose, unwrap, and rewrap the pen after use.
The pen case travels standing up in my bag, so now I can peek, pick out the pen I want and put it back without too much ceremony.
Ceremony will have its time. And perhaps its own pen case, by and by.