Here's something you don't see every day.  Art made from concrete.  We're not talking kitchen counters or sidewalks.  We're talking sculpture.  Watch a concrete artist at work in Tennessee, courtesty of the Chattanooga Times. 
If you think that's cool, take a look at this artist in Florida who's been sculpting a dragon out of concrete.  You can see the finished product at his website.  Apparently people can make a living as concrete sculptors.