I didn't like the default display cover of the Anycubic i3 Mega, so I made my own based on my on an old cogwheel logo of mine featuring a recess to add a display protection.
Filament: Anycubic PLA 1.75mm Black
Protecting The Display
The model features a 0.3mm recess on its back with a border of 2mm so you can fit some kind of clear plastic foil as a protection for the touch display. The dimensions can vary but should be something around 55mm by 82mm by 0,25mm.
I used some plastic packaging which I cut to fit and Fix-O-Gum rubber cement to put everything together.