A lithophane lantern that holds a minimum of 5 lithophane panels and a maximum of however many you want. If you wish to have just 5 panels, then you only need to print the base and the top parts. If you wish to have 10 panels, then you need to print the base, top, and one mid part.
I used this website here http://3dp.rocks/lithophane/ to make each panel but made sure that each photo had a width of 420 pixels (148.17mm) and a height of 629 pixels (221.9mm).
I would use the Xking 2Pcs Slim Dimmable LED Under Cabinet Lighting Kit, 12V total 4W - Warm White I found on Amazon for $18.99 for the light source.