Hello!
I've created a Minecraft style board that you can write any text you want on. In the files you'll find a model with no text and one with "Man Cave" on it.
You don't need AMS for printing, just 16 4mm x 2mm magnets and superglue. It can be wall mounted and you will need M4 screws.
Filament list:
Below you will find the assembly steps.