Stackable Desktop Organizer with Drawers (https://makerworld.com/en/models/1889262-stackable-desktop-organizer-with-drawers#profileId-2023584)
(https://makerworld.bblmw.com/makerworld/model/USd24be979115b7d/design/2025-10-15_92068e1e67726.jpg)
This particular model is infinitely stackable. I actually added two levels to what I printed.
Stackable_Organizer_01.jpg
Here's what I printed with four levels of drawers. The sign to the right is a "gag" gift for a former co-worker who has a girlfriend named, Johanna, but whom he calls, "Ho-Ho".
Stackable_Organizer_02.jpg
The drawers are very simple and don't have any guides, but work at this scale.