And some bookmarks.
Box is a prusa slicer primitive with no infill and top. Inside the box is where I keep filament clips https://www.printables.com/model/581033-grandmas-double-sided-filament-clip
Bookmarks are https://www.printables.com/model/59453-bookmark-basic. I use them as last meters prints and give them away at the office.
My friend, if you think you want small boxes, what you actually want is Gridfinity.
You’re welcome.