Behold the Macintosh II Couch in a Mac Store in Missouri:
A couch constructed from 20 Macintosh II computers at the Mac Store in Maryland Heights, Missouri. It's strong enough to sit upon (since the boxes were built to hold heavy 20" monitors) and surprisingly comfortable -- although I wouldn't want to nap on it.
Yes, those are real computers, held together with drywall screws. The owner tells me it isn't for sale, but considering the original top-of-the-line Mac II sold for around $5,500, that couch could go for over $100,000.