Mechanical pencil holder

I took one of his boxes with hooks from daddy and added pencil clips to it.

Additionally added clips to the 11mm plywood used in my easel
I added the sources to Fusion 360, everything is a little crooked there, but it may be useful to you

Version 1:
6 slots for any Pentel Graph or Rotring 600 series 0.3 0.5 and 0.7mm
+1 slot for UNI eraser or ink liner or almost any pigment liner

Version 2:
3 slots as above
+1 slot for UNI eraser as above
+3 slots for Drafix or Rotring tikky or Faber-Castell Grip

I added "diameter test.stl" so that you can check which diameter is more suitable for your head and change it in the original file :)

You can box buy here:
ru - https://lip.aktiv48.ru/catalog/44819.html
ua - https://amias.com.ua/korobka-dlya-mormyshek-aquatech-2100-s-myagkim-vkladyshem
other: https://aliexpress.ru/item/1005001906978149.html
or find at your local fishing shop