The tilt wand on my window blinds broke - specifically the “hook” at the top that connects the wand to the blinds.
I could buy my own, but with a significantly greater investment of time, I could also just design and print a replacement, which I did.
This model can be customized in OpenSCAD to precisely fit your blinds. If you can understand my logic and terminology, that is.
The author hasn't provided the model origin yet.