I put together this light box for my mom's birthday as she and my dad love their A frame camper. Printing this with PLA will provide just enough light diffusion to allow for it to show through the white lower layers. I have added in a small hole with a negative shape to allow for wiring to run into the main box. I used WS2812B light strips attached to an ESP32 running WLED to get the light effect. Once you put the strips in you can close it up with superglue or similar.