A rechargeable lamp base for a cylindrical lithophane, battery 18650, Tp4056 charging module and a small switch are required.
The lithophane was made on https://tool.itslitho.com/ when making the lithophane enable the lamp option and use the next parameters:
I recommend using only 3 connectors, you can change the connector's width and height should look something like this:

Print everything to 100% scale to avoid fit issues, no support is required, the base and battery holder must be printed upside down, .step files are included
The author marked this model as their own original creation.