This is holder/box for Silhouette Cameo sketch pens and cutting knives. It will hold the standard 24 color pens with three spaces for additional ones and three spaces for cutting knives.
Prints easily without raft or support.
After printing, friction-fit the parts together. You may use CA glue to hold the plate insert down.
The holder was designed in OpenSCAD. In fact, I created universal generator for holders like this, with any number and configuration of holes and I will publish it later, when I complete the documentation.