designer's own words:This “Fun Chair” can be built from one sheet (4’-0” x 8’-0”) of MDF (medium density fiber board) or some other similar material. Next, it is coated with bondo. Lastly, it is painted with a high-gloss paint. This same shape can also be cut from a solid piece of styro-foam and coated with a sprayed-on, plastic material. The "Fun Chair" can rotated to any position to provide different sitting postures. Also, it can be tipped over to be used as a fun, coffee table.