From their website:
We finally found a new printer for the Elfball 2-Minute Warning decks. The new print run looks really good and have even more of a playing card feel to them now.
Direct link to buy 2-Minute Warning decks
These decks are great to turn your Elfball game into a reliable 60 to 70 minute game.
Highly recommended for tournament play. We’ll be providing several decks for Elfball tournament at GenCon this year to be used for the event only … but feel free to bring your own deck that you practiced with to win.