I guess I should pay more attention to the random forwards my mom sends me, because everyonce in a while it turns out to be pretty awesome.
Here's Won Park, a Korean-American origami artist that creates his own unique, intricate, and original designs using his medium of choice: the US dollar bill. He never cuts anything - everything is constructed completely out of folds.
Check out his process in this clip (apologies for the supremely annoying s/he host):