I recently got a set of Blick Studio markers and wanted a nice organizer for them, and this is the result of that! It holds 16 Blick Studio or Copic Sketch markers (or any similarly sized item), with a 5mm stagger between them so the colored tips are always visible.
Mine in the photos was printed at 100% scale and the markers are a little snug, if you want a looser fit I recommend scaling it up by a percent or two.
The walls are also very thin - I recommend using a 0.6mm nozzle with fat lines so they can be a few extrusions, if possible.
The author marked this model as their own original creation.