a couple bags of dollar store rock gems = $2
Bin from Walmart = $3
christmas lights, parchment paper, vellum= already had
ink for printer= a fortune
But if you forget about the ink, this is a pretty cheap and fun activity!
If you used a deeper bin, then you wouldn't have splotches on the plastic from the christmas lights. It would be more of an consistent ambient light. Also I plan to put tin foil around the bottom and sides to reflect the light out the top, but I keep forgetting to pick it up at the store. If you had a bin that had a white top, then you wouldn't need to mess with the parchment paper. The white opaque top would do all the work for you.
I printed up a bunch of coloring pages of Jonas' favorite characters, gleaned from a google image search.
I also made one of us using this tutorial. Jonas thought it was great.
So much fun! There's a lot of different things to do with a light box, and a million ideas online. I'm excited to try a bunch more in the future.