Created some wrist rests for use with my Ergodox.

Please note, my Ergodox doesn't have a case, it's just the pcb sitting on trimmed mouse pads. This may or may not work well when working with a case. 

Includes a slot for an SD card / microSD adapter. Ever since getting my 3d printer, a microSD card  has been sitting on my desk top so now it has a home.

One of these models has a raised edge that fits into a groove in my desk to prevent it form sliding forward or backward.