One of my favorite group projects for art students is the "Cardboard Chair." Students are in teams of 3 or 4 and the objective is simple- to design and build a functional chair from recycled cardboard.
It's always amazing to witness creative minds at play with this activity. In just a short period of time, thrones, loveseats, recliners, and stools are fashioned out of paper and tape.
Creating the most basic furniture piece out of the most basic material is a fascinating challenge for beginning artists and seasoned designers. Here are a few examples of paper chairs that I think are pretty amazing.
Ryuji Nakamura, Hechima 4 chair, paper, 2008.