Cube CountDown script takes advantage of CSS3's transform property to display 3D cubes that rotate to count down to any desired future date. It supports either a horizontal or vertical layout, with its interface scalable on different screen sizes.
Smiley.js is a jQuery plugin for rotating smiley faces on your site to the correct viewing angle :D. The happiest script around.
ElastiStack is a little script that let's you navigate through a stack of items by dragging away the first one.
It comes with an elastic touch meaning that when dragging the top-most item, the other ones will follow as if they were connected elastically. When reaching a certain distance, the dragged item will release itself and the next item will pop out.