I remember seeing a PoW exhibit at the Dayton Air Force museum, where they had all kinds of crazy things that american PoWs made in german prison camps. Including a working clock made of cardboard, and an insanely elaborate mouse trap, with many different chambers that each had a different trap.<p>All I could find online was this picture, which doesn&#x27;t really do it justice: <a href="http:&#x2F;&#x2F;jenpowell.com&#x2F;wp-content&#x2F;uploads&#x2F;2011&#x2F;10&#x2F;usaf_pow.jpg" rel="nofollow">http:&#x2F;&#x2F;jenpowell.com&#x2F;wp-content&#x2F;uploads&#x2F;2011&#x2F;10&#x2F;usaf_pow.jpg</a>