Neat!

http://www.fontcapture.com/

They say;

At fontcapture.com you can create a font from your very own handwriting. There's no software to download and install, all you need is a printer and a scanner. Simply fill in the font template, scan and upload it to our website, and download your completed font. The fonts you create using fontcapture.com can be used on both Windows and Mac computers.

I haven't tried it yet, but it sounds awesome! I've always wanted to do that!