Customizable Pen Clip

This is a simple parametric holder for pens or markers, which can be customized to any size. It is printed in PETG for its combination of strength and flexibility, and adhered using 3M VHB tape which sticks quite well to most surfaces.

I designed this to hold dry erase markers that I use, in conjunction with dry erase contact paper, to make mini whiteboard/note pads anywhere around the house. For example I have one on my A/C unit to keep track of when the filter was last changed. I also us