For my project, Into the Wood, about murder in wooded areas, I wanted a unique navigation and modified a javascript animation to give me that. As you get closer to the ball of chrome spheres, it moves away from the cursor and at certain point flows around it.

Animations like these do not work on mobile devices as they are superceded by the control gestures.

http://www.bernadinism.com/_navigation/nav-wood1.html