Porcupette
Source: Drop. Despite the name you should absolutely never, ever pet it. Critter type.
The 
Porcupette is a Mists of Pandaria pet with a 0.3% chance to drop from the 
Sack of Pet Supplies, awarded by completing Grand Master Pet Tamer daily quests across multiple zones.
Guide awaiting review
Defeat Pandaria Grand Masters
Complete the daily quests from the Pandaria Grand Master Pet Tamers to earn a Sack of Pet Supplies each day. Visit Mo'ruk at 62.2, 45.8 in Krasarang Wilds, Hyuna of the Shrines at 48, 54 in The Jade Forest, Courageous Yon at 35.8, 73.6 in Kun-Lai Summit, and Wastewalker Shu at 55, 37.6 in Dread Wastes.
Run Remaining Daily Tamers
Expand your daily runs to include Seeker Zusshi at 36.2, 52.2 in Townlong Steppes, Farmer Nishi at 46, 43.6 in Valley of the Four Winds, and Aki the Chosen at 67.6, 40.8 in Vale of Eternal Blossoms — each awards a Sack of Pet Supplies with a chance to contain the Porcupette.
Run Non-Pandaria Grand Masters
Outside of Pandaria, Grand Master tamers in Winterspring (Grand Master Trixxy), Deadwind Pass (Grand Master Lydia Accoste), Shadowmoon Valley (Grand Master Antari), Icecrown (Grand Master Payne), and Uldum (Grand Master Obalis) also award a Sack of Pet Supplies daily, giving additional chances at the Porcupette.
Try the Auction House
If daily tamer runs are not producing results, the Porcupette is tradeable and may be available from other players on the Auction House, which can be a faster alternative to farming the 0.3% drop chance.
Tips
Running all available Grand Master daily tamers each day maximizes the number of Sack of Pet Supplies you open, directly increasing your total attempts at the 0.3% drop.
