I made these stands to hold a keyboard or iPad for use on my flight simulator. hey hold the devices up at an angle that makes it easier to use.

The section that slides onto the desk is for a standard 18mm thick desk, and I have allowed for placing a piece of doulbe-sided take on each surface (only remove the paper tape on the stand side though - you dont want to stick it to the table) this is to protect the table surface.
I also placed some foam rubber were the keyboard sits so it doesnt slide around.
Both of these mods are shown in the photos.

Creality

Ender-3 v2

No

No

0.2

20%