I took the original file and adjusted the size to fit into the tucks container, and removed a couple of the sides to make some larger storage compartments. (If you are unfamiliar, tucks are used during the postpartum healing period). I reused the container to organize my colorful rubber bands, but it could easily be used for storing other small parts like nuts/bolts or safety pins. I glued it down into the container with tacky glue and a little hot glue for the gaps.

Creality

Ender 3 Pro

No

No

10