Found this neat experiment that you point your webcam at yourself and swipe your hand left or right to turn the pages of the book.
It’s called the Webcam Swiper.
Chrome is the only stable browser which supports webcam access at this time, but Firefox nightly builds supposedly have it too.
Webcam Swiper - http://iambrandonn.github.com/WebcamSwiper/
The author says ity was inspired by the Magic Xylophone. Itself very interesting. I even used my mouthstick to activate it.