For my last project in Blackbox I decided to make a black box. I covered a box in black material and inside i hid pictures of various objects, as well as another black box. I then gave the sealed box to my class and allowed them to ask me questions about what was inside. If they got a question right they were allowed to tear a piece of the fabric, which would reveal an object (image) in the box. However, for every object they guessed right or discovered, I would lower the lights. In effect, this was supposed to show my class that the more we learn about black boxes, the harder it is for us to really se what's going on with them.