I decided to take on the challenge of creating an affordable, collapsible light box for people who may be short on space as well as cash. The problem I found with many of the affordable foam core light boxes is that every time you want to take it down you risk having the tape rip the walls apart. That in combination with the potentially frustrating assembly as one fumbles with the foam core like a house of cards lead me to the idea of a dove-tail like joint for the box.
This light box design cost about $4 for the foam core and another $1 for the poster board that I use to create a seamless background. It's quick and easy to assemble, tear down, and store away. I still need to find brighter lighting, I used two dim desk lamps to test, but it definitely has potential!