Form Plugins & eCards

I am needing to develop an ecard functionality for a WordPress site and wondered if anyone is aware of being able to do this with a Form plugin in like Ninja Forms or Gravity Forms.
These are free cards, no payment required, would need the ability to upload own “card” designs. Most plugins out there look clunky or are totally geared up to sales which I really do not want.

Does anyone any bright ideas of how this might work with any form plugin? Please – thank you!