I'm the founder of http://handwrite.io, which allows you to use your own real handwriting to send out cards in about 30 seconds a card. Our robots use real pen and paper to write in your actual handwriting.

For every card, your handwriting is generated from scratch so it's unique every time and not a font like other services. And if you don't like how your writing looks, you can always use one from our selection.

We've got a Zapier integration which has been a game changer for us and clients as well.