I don't know yet. I think we just got the email this past week.
I don't remember exactly how they were supposed to work, whether each team gave out their own card, or if it was to be a deck they made available. We were sent a template that we were to fill in, if we wanted to participate.
We always have some sort of scouting info sheet, though.
If we do have the cards, they might look something like this:
http://www.chiefdelphi.com/media/photos/39945