That's really awesome. The theme may be hilarious, especially to a FEDEX employee, but some serious effort that went into the design and construction of all that. Not to mention some serious FEDEX supplies!
My dad had this book from back in the early '70s, a hippy book kind of, called "Nomadic Furniture". It had lots of plans for ad hoc
furniture, including cardboard furniture. I always wanted to build some....but the Wal-Mart imitation oriental rugs were much easier!