This is a simple pen tray I designed a while ago to keep my pens/pencils displayed and tidy on my desk. You can also use them to fill a pen drawer of some sort.

I usually pick up some thin felt with adhesive on one side, and line the tray with that, to keep my pens from getting scratched. You can get that at most craft stores for pretty cheap. But you don't have to do that step.

In the print profiles and .stl files here, I've put in versions that holds 4, 8 and 12 pens/pencils. I can add other sizes too if anyone would like.

Max pen length is 145mm, but you can scale it in any direction if you need to.