A few days ago, a friend told me that he saw a similar project on ThisIsWhyImBroke.com, and asked me to build one. Unfortunately, like my green lantern ring, I forgot to take a picture of the one I made for him so I built a simpler but less good-looking one of my own.
This guide looks fairly complex at a glance, but the only hard parts are the circuit and getting the switch to line up with the bottom plate. Also, the first step explains how to make a cardboard box cube, like the one I have at home. While the fifth step should be a project in its own right, it’s not very complicated, just a longer process.