Tracing, animation, x-ray, light box under $20

Step 8: Finish

Either stain, or paint you're box, She liked the wood color and grain so I used a clear coat.
After it is dry, place the plastic sheet, what is now a translucent clipboard into the box's groves, and you're finished. To turn the light on and off, simply pull out the clipboard, push the button, and put the board back in, She can now use this as a light box, or just a large clip board from drawing.