I printed in Petg, looks good and works as described. 

tedcorindustries

0.2mm layer, 2 walls, 15% infill

really nice.  I modified it to display pencil with toppers

0.2 layer heightsNo supports neededWorks fine in PLA, expect it'd work just as well in other materials

I wanted a simple holder for my coloured sharpies so designed this. Works well and the design can be adapted for other size pens/pencils if needed.