I've got this...

http://cakesy.com/85d2db719

While we're at it, I'm pretty sure this one is obligatory: http://cakesy.com/886e854a5

The above example makes the text look too small though, IMHO. Maybe scale things up dynamically to fit the text to the available space a little better? Still, very neat toy.

Awesome idea about the auto-sizing of text. I will give it a shot tomorrow.