A couple of different sites around the net are claiming that the recently leaked photos of the rocket chicken, paper toys and the dragon kite are attached to the latest loot cards from the WoW card game. Previous speculation had linked them to the engineering profession, which wasn't a bad guess considering the new schematics that are already being added to that profession in the next patch.
Now, Dyrk at the Gutterspeak blog claims to have some new information about the rocket chicken, which will apparently be the second rarest item of the three new cards. He claims that it's a small, non-combat pet that launches itself into the air (or accidentally blows itself up) as its idle animation.
Following another tip on the World of Raids forums, I came across this site. About halfway down the page, the card seller claims that the new loot cards are a "paper airplane", "exploding pet chicken" and "3-D kite". While the page is mostly in German, these three items have been translated into English. Perhaps one of our amazing German-speaking readers can scour the rest of the page for more clues, but I wasn't able to turn up anything else even while wielding the awesome translating power of Babel Fish.