You probably want to determine what size box will work for what you are going to use it for. Too small means you have to keep re-positioning your work and too large means you have to be able to store it somewhere. There is an Artograph light box on Amazon in case you want to look at them for price comparison. Oh it looks like it is the same price as JoAnns. And Walmart's price seems to be the same also. The one I use is an old lighted metal box that was used for some kind of advertising. Someone asked my dh if he wanted it and he said yes. Lucky there. You might be able to make one out of a plastic box assuming you could drill a hole in the side to put a light in. It would have to be a cool light so as not to melt the plastic box. Hope you find what you need.