Vouwwow [Dutch] - to pronounce as Vow Wow and which I would translate as Wow it Folds - is a cardboard strip that is easy to carry, easy to fold into a chair and easy to produce.
Vouwwow can be taken to the park or an event, anywhere that you would want a chair. I can also see temporary events use this cheap transportable chair. Vouwwow by Maartje Nuy and Joost van Noort won the Thonet / Mart Stam prize [Dutch] for innovative chair design.