Duct Tape Case
 

Duct tape is probably one of the most geeky materials known to man. We have a history of working with duct tape that includes some fairly impressive constructs, as well as several contest victories for creating purpose-built structures in a short timeframe.
In February of 2007, we decided to put our skills working with DuctTape into a long-term, practical project. We wanted to build something that could really be useful. We decided on a computer case.
Our objective was not to create a working computer out of tape and computer parts, but rather to create a case which could be used to house any computer with a small form-factor motherboard.

http://icrontic.com/articles/dtc