Bobbytables is a project mainly written in JavaScript, it's free.
Shadebobs with HTML5 Canvas. Entry for Single effect compo at The Flame Party
Shadebobs with HTML5 Canvas and Javascript Entry for the Single effect compo @ The Flame Party 18.6.2011 @ Smökki, Espoo, Finland Created at the party place with a netbook
Tested and found working with Firefox 4.0.1 and Chromium 12.0.742.91. Also tested with Epiphany 2.30.6, but there are graphical issues.