Litophane holder

This is to hold a curve litophane with 1W led ( https://www.amazon.it/gp/product/B01EZZI6V0/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1) and a battery case for 2 AA ( https://www.amazon.it/gp/product/B06WLHFXSH/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1 ).
The front mobile part is necessary because the thickness of the litophane could vary from one to another....
It need a switch to power on/off the led.