Your prayers have been answered! “Fontifier lets you use your own handwriting for the text you write on your computer. It turns a scanned sample of your handwriting into a computer font that you can use in your word processor or graphics program, just like regular fonts such as Helvetica.” I picked up the link from Typographica this morning. The service appears to be free for the moment, although you may get a server-side error when you click through.