Cardboard Chair
The chair is made of 3 sheets of cardboard and hot glue. Can support an adult, it has extra (cardboard) supports in the bottom part of the seat, which tips back for comfort. This chair also has the benefit of disassembling for transportation, shipping, and storage purposes.
The strap system is very handy for transporting the cardboard chair. One piece goes over the carrier's shoulder, and the other is held by the wrist, so both hands are kept free. To assemble, the seat and back supports just slide into the triangular slots in the sides of the chair and lock in place.