I needed this in my life... that's it !
I've made this one too for SMALL PRINTERS : https://makerworld.com/en/models/194245
All the components available on my website : https://jeje-linge.fr/pages/lord-of-the-rings-lamp
This is pretty simple to make and everybody will stuck on this lamp.
YOU HAVE TO USE WHITE OR TRANSPARENT PLA OTHER COLORS WILL BE TOO DARK AND THE LIGHT WON'T GO THROUGH.
The zip file contain the arduino prog