Mount for a USB 3.0 HDMI KVM Switch 1 Monitors 2 Computers, 4K@60Hz KVM. Link below to Amazon page I bought my KVM from. 

Needed something to hold the KVM and the small push button to switch PC's. 

Drawn is solidworks, I included the solidworks files incase you need to modify it. 

Amazon Link:

https://www.amazon.com/dp/B0D5D4FK1H?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1