Originally Posted by autobahnal

Yeah they don't advertise them at all, which is so odd (if you're going to create them and presumably try to build buzz, people have to know!).

Anyway, in my case I had read about them on Matthew's blog (https://liveandletsfly.com/united-ai...trading-cards/) and so I asked the lead FA after the meal service, she called the cockpit, and pilot was happy to share as many as I wanted. I got two, and then when my seatmate saw them, he wanted one, so we got a third. So I would just ask the FA next time you're on the A321neo!