I wanted to use https://www.printables.com/model/78674-altoid-pinning-tray-and-parts-holder/comments/637708 to keep my extra pins in for repinning practice locks but I don't want to dig through them each time. So I added more dividers, giving enough for 7 sizes of pins across the row. Enough to keep them all apart so they are easy to find.
The author remixed this model.