I used Bambu Labs Basic PLA with standard settings other than these:
Make sure you have a good grip on the build plate. I use Textured pei plate, with temperature 65
The design process:
I saw @cmh_13634's Pegboard holder for Sharpie pens
The size and attachment didn't work for me, so I designed my own version from scratch on Thinkercad
Thanks to the orginal designer
I'm just a hobbyist, trying to make some things, not a professional designer
(Please keep this in mind if you post a review)