Styrofoam is rotten stuff, but it does a really good job at protecting precious gadgets and gizmos in transit.  Some of the things that I have bought have absolutely massive amounts of the stuff and there is little I can do other than take it to the local recycling center.  Kwangho Lee looked at a mess of Styrofoam and saw potential, seating potential.  He showed what you can do with a little imagination, too much time on your hands and a need for quality seating.  Kwangho Lee built himself a sofa out of Styrofoam and I must say, it looks pretty good.  The little bits that break off might get kind of annoying, so I would probably put a cover on it, but otherwise good job.  I think a little homegrown recycling is great.