http://conceptrends.com/2008/08/07/simple-cardboard-furniture/ The designer Erdem Selek showed us that plain cardboard can be transform into a simple furniture, like this foldable cardboard stool. The stool is entirely made from a cardboard but for our amazing can carry a person up to 90 kg. No glues and chemicals are used to set up the stool. Smaller versions of this chair can be made to fit in your backpack and take them wherever you go.