Lifelike Creations: WoW Battle Pets
Select a pet:
Tranquil Mechanical Yeti — [Tranquil Mechanical Yeti]
Profession: Engineering 
Drop: Blingtron Gift Package
Approximate Drop Rate: 1 in 5000
TIP: You can filter pets in a wide variety of ways using the pet filters. You can even apply multiple filters to really zero in what you're seeking.