The Do Hit Chair by Droog Design is a a cube made with 0.4? thick steel. To mold your own chair, just grab a sledgehammer and start beating the hell out of it. Once youre happy with the design, take a rest from the exertion by grabbing a seat on your new chair. The cost of a Do It Chair is a huge turn-off though. $6718 for a pre-hammered chair and $5924 for your non-hammered piece of steel.