I had a problem with the surface of my powerplay mousepad (I use the cloth one). It would slip around on the base of the pad every time I moved the mouse. So I quickly designed this part, hit print and just slipped it on. For me, it worked great. No more slipping around. It is very fast, easy and cheap to print.
 

I included the fusion file so that you can adjust the model if needed.

14.02.2024

Added a version with rounded corners