Receive a postcard while you're on board

I'm exploring a small experiment and wondering if it's something cruise crew would enjoy.

Life on board can be busy, repetitive, and sometimes a little disconnected from the world ashore. I kept thinking that receiving a real postcard in the mail – something you can hold in your hands, pin up in your cabin, or keep as a small souvenir – might be a nice surprise.

The idea is simple: you'd receive a postcard delivered to your ship.

I haven't figured out all the details yet. I'm simply trying to find out whether anyone would actually want something like this.

Would you be interested?