I wanted to replace my old pen holder and a note box that were on my desk with a more space efficient version.
I have found many pen holders here, but none that also includes a box for notes. That's why I designed this model.

Two-piece construction. The pen holder is placed on the note box and can be removed at any time. 
The note box is suitable for notes in the size 90x90mm.

Printable without supports.
For better strength, I printed with three perimeters. I have used an infill of 15% (gyroid).