I happen to come from a place where it's pretty common to keep your wallet on a chain but I can't say I'd ever done it myself. So when I was asked to braid a custom lanyard I admit I had to google wallet lanyards to remind myself of the details. The client had just obtained a very nice deerskin wallet and they were looking for a matching lanyard. Deerskin is a bit unusual as a braiding material because it lacks the tensile strength of other leathers. It's very soft and supple and comfy, but the low tensile strength makes it challenging to braid.
I reinforced the braid on the whole by giving it a latigo core that's fixed to the anchors (cut from some bison leather) which hold some solid brass trigger snaps for fasteners. That sentence might be a lot of mumbo jumbo but it amounts to the deerskin being a part of the structure without having to bear much, if any force or stress along the lanyard. It's a simple little thing but I put a fair bit of thought into it and I'm pretty happy with the result.