Drag this link to your bookmarks bar: Katamari! Or copy and paste this url into the location bar on any site: javascript:var i,s,ss=['http://kathack.com/js/kh.js','http://ajax.googleapis.com/ajax/libs/jquery/1.5.1/jquery.min.js'];for(i=0;i!=ss.length;i++){s=document.createElement('script');s.src=ss[i];document.body.appendChild(s);}void(0); (works best in chrome or firefox 4) This is a "bookmarklet" that turns any page into Katamari Damacy . Try clicking the Katamari! link above. This was the winner of the 2011 Yahoo HackU contest at University of Washington. Short version: css transforms (for things stuck to the katamari), canvas (drawing the katamari), and z-index (illusion of depth). Long version: The bookmarklet loads jQuery and kh.js into the current page. jQuery is used mostly for .offset() and .css() .  kh...