How to add this effect on leather edges?

[Samalan]

On 4/7/2023 at 1:44 AM, Mocivnik said:

i get you. But I dont want to give this away as my invention, but to use it as a part of my creation.

I agree with that intention when we put something out there as a design and someone copies it that should be a complement to the designer or fabricator unless you are trying to make it your idea.  this is not your intention, sorry for my post it was really not necessary.