Have you heard of Phil Hansen?
He is an awesome artist that works in a large scale and with crazy mediums. He posts videos and pictures of himself creating the pieces. It is very interesting to see how he creates his artwork.
Here is his website
One of my favorite pieces ...
Mother Theresa, 2006
This work becomes even more impressive when you learn that the image is made out of dandelions!He uses all sorts of interesting materials . Check out his website