Yes, not magically but basically it dissapeared. The contract for that trick expiered and the USPCC did not want the cards to be printed anymore because of the Bicycle back design on it.(some new rules)
I heard about this USPCC (specifically they bicycle brand though) thing. Is there a thread on here about it anywhere?
If that's the case, perhaps they can do a 1on1 of how to make your own panic gimmick. I don't imagine it being that hard, and better still, it'll look even more realistic.