Japan’s Miso Soup Design has been doing some very nice work with recycled materials for quite some time now.  The ‘Formula’ chair, made from recycled material that they call Eco-Resin, requires only 16 sq. ft. of resin and has a one-piece, uni-body construction that requires no hardware or glues.

The super-efficient manufacturing process produces minimal waste – doesn’t appear that comfortable but it does look  great.