You have to give the sample digitally in Microsoft Font Maker, while on Calligrapher.com, you have to take a printout write a text in your handwriting, and then scan or take a photo of it.
They say your handwriting is as unique to you as is your fingerprint. Maybe they are right – perhaps every person adds a little bit of his or her personality to their penmanship. Just maybe ...
Even though we are currently in the "everything digital" age, there is still something to be said for great handwriting ...