I recently built a new pc for gaming and have been using a piece of scrap EVA foam for a wrist rest for months now. It was really bothering me so I decided to make something a bit more appealing from some other scrap I had laying around.
I mocked this up in fusion360 to be 2 pieces, one EVA and the other maple, both at a height of 10mm.
I cut the maple on the CNC machine and the foam on the laser, then engraved the foam just to make it look a little less boring, and to make my gamer friends jealous =P