We were wondering if Happy Pets had anything in the works for St. Patrick's Day with their Shamrock Cat, and now that question's been answered with a whole set of Shamrock animals -- Dog, Duck, Bunny, Pig, and Hamster! The only one missing so far is the Parrot.

These are also Facebook Credits exclusives, but if you think you've got the luck of the Irish, you can try for 'em with a Mystery Box.

Related: Ultimate St. Patrick's Day guide for FarmVille, Mafia Wars and more


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