Pigs: WoW Battle Pets
Select a pet:

World Event: Children's Week
Quest: A Warden of the Alliance/Horde [10]
Vendor: Jepetto Joybuzz, Leial Knitterton (H), Brundia Braidhammer (A)
Zone: Dornogal, Orgrimmar (H), Stormwind City (A)
TIP: When you browse pets by family, not all pets include an item. Those that do not are typically wild pets obtained through pet battling.