Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4851449.

This is a lamp stand compatible with the awesome Ikea Tertial desk lamp. It fits into standard 1-inch-spaced pegboard with 1/4-inch holes. The fit is loose enough that it is possible to carefully move it around without damaging the plastic pegs.

The support for the pegs may be a bit tricky, but I have not had a print fail on my Ender 3 Pro with 0.2mm layer height and full overhang support.

I had a lot of problems with this design depending on the plastic that I used, so I redesigned it to be much stronger. Version 3 prints as 2 parts, and once the joints are cleaned up it can be press-fit together.

Here it is in my Onshape project. Here is a blog about it.