This is a pen holder I designed for my Wacom Pen that affixes to the side of my iMac with a sticky pad. It will fit on either the left or right of the iMac and I'm sure would fit many other monitors. Could also be used to hold a normal pen too I suppose.
I find it very useful and I hope you do too.
This is my first upload to Thingiverse after receiving my 3D printer a few weeks before Christmas 2017. I've designed a few things, and will upload them soon.
Should print easily with no supports.