www.fontifier.com
On this webpage you can print out a form that you write out your alphabet on. Scan it into your computer, and upload it to the webpage. You can see what it would look like as a font & then you can buy it for, I think, $10.00.
I tried it once, but I wouldn't ever use it so I didn't buy it. It was really cool though!!! If you are really going to do it, practice a whole bunch of times. Upload them and see which one you like the most.