I bought a keychron k6 recently and while the keyboard is amazing, I am feeling pain on my wrist. What's a 65% wrist rest I can buy? I used to have an ASUS ROG Scope TKL one for my previous keyboard but it the "leather" started falling off and I had to get rid of it. I don't really mind the material as long as it's not wood.
If can't find anything but wood, then you could consider clothing it, like a chair. You could add some foam in there, choose cloth that fits your build, have a field day!
Just curious why the exception of wood? Is it worry about allergy or material degradation? If it's the later, I've one that been in use consistently for 6-8 hours everyday for several years and not a sign of wear on it - and the satin finish is very nice to the touch.