Inspired by an idea I found on another platform, I recreated these parts from scratch using Fusion360.
My wife has a cricut plotter and also a couple of different vinylroles that are basically lying around in our hobby room.
These parts are designed in a way that they can be easily mounted to a wall using pegs & screws and stacked in a way that they always have the same vertical distance.
A single part is currently still missing. So the idea is, that you either print the top and the bottom part (each twice) for holding up to two roles or you add as many middle parts as you like to be able to add more roles to your wall.
I printed them using PETG, no brim or support, just a skirt as usual.
Because these parts are rather large and my AnyCubic i3 Mega has roughly an area of 200mm², I rotated the parts to an angle of 45° and was able to print two parts at once each time. So that the result looks as nice as possible, I also set bottom/top line directions to 45°.
The author hasn't provided the model origin yet.