The file '5 Pen Holder Display For Regular Size And Mini Pens 3D Printer Model' is (stl) file type, size is 221.4KB.
I really liked the original pen rack, but found it too wide for my mini pens. I took 20mm out of the center of the base, and put the two halves back together using Tinkercad. Now the mini pens don't fall through, and it also holds regular size pens just fine.
Narrow_pen_display_rack.stl | 505.0KB |