@federicomena ah I'm in an apartment so maybe I bite the bullet and get the punch...
@vickysteeves around here stationery shops will punch that kind of thing with the machines they have... if it's a one-off, that may be cheaper 😀
@vickysteeves I have a spiral bound notebook I was thinking about making a cover for. I was thinking about using the makerspace's laser cutter and seeing if I could make one out of a thin wood. The laser cutter could make the holes small enough and I could etch whatever I want on the front.
Haven't gotten to the point of making it yet though, that is just the leading idea right now.
@ted that's a super cool idea!!
I've bought thin plastic (polyethylene) folders and cut them down to use for my clipboard-based, memo-sized "deconstructed" notebook.
Might not fit with your aesthetic for this, though.
@vickysteeves if you are going to make multiple of those, definitely get the custom punch.
If it's a one-off, you can press (both?) hard covers between two strips of wood and clamp them tightly. Mark and drill; if you can use one of the pre-perforated sheets for reference, that's best. That should get you a clean cut on each hole.