On my 3D printing adventures, I came across something called “Lithophane” – which is a pretty cool way to print an image and have it displayed. You’ll need a 3D printer and the right color of filament.
For example, check this out:
https://www.thingiverse.com/thing:3454896
Very nice, right? I have already printed one lamp – but you can custom make these things! Check out https://lithophanemaker.com/