Strange but true: FedEx Furniture is constructed with empty FedEx boxes, and held together by FedEx packaging supplies. It's an example of ultraminimalist Freeganism. Jose, the builder of the furniture, says:
All of the furniture seen on my website 100% functional. The couch is standing/sleeping approved, I sleep on the bed every night, I eat at the dining table, and I work at the desk almost 20 hours a day.