Origami

Apparently, if you fold a 20 dollar bill in just the right way, the result is a vivid picture of the twin towers burning...

Then, if you fold it a few more times, you get the equally shocking image of George W. Bush holding hands with a Saudi prince and laughing at you!

And two folds beyond that yields Dick Cheney sneering as he drinks the blood of Iraqi children...

I tell you, it's positively eerie.