3D Javascript Toy written before all the HTML5 and canvas shenanigans came out. 3D matrix transformations and some elbow grase make it work. The magic happens in /javascripts/hypercube.js. Check out the demo file to see it in action.
You can use this how ever you want, but don't take credit for it if you do. The only condition is that you tell someone you love how special they are to you.