Customizable Colored Pencil Holder
This OpenSCAD model provides a tiered pencil holder and lid. The specific STL file provided has holes for 60 7.5-mm diameter pencils, but you can change this to fit your particular needs. There is the option to include a diamond pattern on the outside which is effective at hiding seams and makes handling easier, plus it looks nice with PLA "silk" type filament.
None of the OpenSCAD code relied on AI. I've included my notes on how the geometry was arrived at.
Enjoy!