Re: Light boxes?
I'd like to make a more permanent DIY one, but for now we're fine (baby is only 1 so she really doesn't care). For simplicity's sake we have a under-the-bed plastic tupperware that we flip upside down. And we put a string of Christmas lights from the dollar store. So cheap and simple, and cleans up well. We flip over the bin for messy projects too. But we'll definitely want a bigger/taller arrangement soon.
I like the DIY one they have on PAHM because they designed it to have a changeable top surface. Peg board for light brites, blacklights for neon fun, dry erase board, plain white surface for building, glued lego bases for legos, chalk board, etc... This is my dream!