I use it for a single punch hole tool. Snips or scissors should hold inside nicely.

Standard print. No supports needed. Print same as multiboards

I recommend (x2) Multiboard part: 9 mm Big Thread, Flat Head, Bolt To fix. https://than.gs/m/974055

Or on the newer version: 1 x 13 mm Small Thread, Flat Head, Bolt to secure. https://than.gs/m/974055?image=506899 Print 100% infill for stronger bolt.