Slide in wall mount for MXQ Pro 4k tv android box. The remote works through from the top so it's easy to mount it next to the tv and have the cables hidden behind it. Tolerances are kinda tight so you might need to scale a bit deppending on your 3d printer..

Creality

Ender 3

Doesn't Matter

Yes

You can play with the infill settings but there's not much to gain, I just went with 100% for the additional strenght.