torsoheap told me about this really cool website
CGSphere. Basically one can download a very simple 3D scene from the site with a sphere and a wire frame at the back, then modify it in hir favourite CG rendering program to some extend and submit the result to the site. People have come up with some pretty creative stuff so far. My favourite ones are:
1.
mini adventure 2.
Cozy? 3.
tree 4.
Road and many many more. This is definitely one of the coolest thing I've seen on the web in a while.