I had some translucent prints I wanted to show off at an event, so devised this simple plinth to facilitate battery powered LED strips to shine upward through the prints. Use whatever power supply or light source you want that fits. This was designed to cover a simple 12v battery pack (8xAA) and 12v LED strip. 

The diffusion panel is a separate piece so you can make a variety of panels with different infill types and densities, or even colors, to swap in and see what you like, or even change them with the piece on display.

Enjoy!