Heya!
I needed a new sling for my Tikka M55 .243, or, to be honest, for the new Helia scope on top of it. My old sling was a bit unreliable and it never felt good to carry that scope on a crappy sling.
So, I bought a piece of leather, made a simple template in CAD and went to town with a boxcutter and some other tools I had in the shed.
It's not super pretty, but it does the job as intended. Also, I am already looking for new things to make so I guess I might have a new hobby.