Fidipidi. Fidipidi is an application that allows you to create personalized greeting cards right on Facebook! Just select the card you wish to create, and they’ll print it out and mail it for you. You can use your own photos or Facebook photos to create an original greeting card. Or, you can add a personalized message to one of their preexisting cards. Either way, you’ll be sending someone a real, non-generic greeting card without even leaving your home.