A friend told me about cash organizers so I got some inspiration on TikTok and Thingiverse and created my own version of this idea. You've got no clue what I'm talking about? You can look it up under budgeteering (= fancy word for budgeting) and cash stuffing.
It's printable without supports (45° angle).
I didn't like the first version too much but it's smaller, uses less filament and you don't have to bother with overhangs. You decide which one you like better.
The author remixed this model.