It's a pen stand, but I made it to hold especially Kaweco Sports fountain pens in mind.
Kaweco Sports and Kaweco Al Sports would go into the main holes and sits there quite well. I also wanted my other, a bit thinner fountain pens to be put onto this stand, as well as thicker ones.
So there is a thinner hole 9.2mm diameter within a 11.2mm hole. So Kaweco Liliput and other thinner pens would be held a bit lower than the Sports comfortably.
It can hold two thicker fountain pens on the two grooves.
The author marked this model as their own original creation.