We had to improvise a sery of lamps for the annual design school exhibition of 2010. We came up with an idea of a very big dôme shiny blue inside and mate black outside. But how to produce over 20 giant lamps in only 2 weeks? Here is the solution we found :
Step 1: Trash can
First, we found a big trash can. A kind of big cardboard sonotube. This seemed perfect to create a vacuum chamber.