FluidTunes is a freeware application for Mac OS X that lets you control iTunes through a camera with gestures, using your hands, head or feet:

• Swipe your hand from left to right or right to left over the screen center to scrub.
• Wave quickly at buttons to activate them.
• Without using a keyboard or mouse, you can navigate through your music and play or pause songs.

Check it out in the demo video above. You can find out more information about FluidTunes, or download it, at the FluidTunes site.

via HipYoungThing