Wall mounted pen holder.
Hexagonal holes, flared out for easy access.
Holds 28 pens.
Hex are 13mm on top, 12mm at the bottom.
There are 2 opening in the bottom so you can screw it into the wall under an angle giving it a floating effect.
I printed mine in PETG .3mm layer lines (and way too fast) but any material will do.
Prints flat on the bottom, no supports needed.
You can also use it as a normal pen holder without mounting to the wall, it's sturdy enough.
Newer version uses less plastic :
https://www.printables.com/model/416931-wall-mounted-pen-holder-hidden-screws-reworked
The author marked this model as their own original creation.