Peck

Vendor: "Plucky" Johnson

Zone: Thousand Needles

Cost: 1 (unlimited supply)

Achievement: Menagerie

Category: Pet Battles

Pet Store 

Pet Battle: [1-2] Tirisfal Glades; [1-2] Elwynn Forest; [3-4] Westfall; [3-6] Bloodmyst Isle; [4-6] Redridge Mountains; [5-7] Duskwood; [6-7] Hillsbrad Foothills; [20-22] Howling Fjord

Pet Battle: [1-2] Teldrassil

Pet Battle: [1-10] Darkmoon Island

World Event: Darkmoon Faire (first week of each month)

Vendor: Lhara

Zone: Darkmoon Island

Cost: 90 (unlimited supply)

Drop: Darkmoon Game Prize

Zone: Darkmoon Island

Approximate Drop Rate: unknown

World Event: Children's Week

Quest: Back To The Orphanage [60]

Vendor: Will Larsons (Worgen only)

Zone: Darkshore

Cost: 50 (supply of 1)

Vendor: Shylenai

Zone: Darnassus

Cost: 50 (unlimited supply)

Pet Store 

Vendor: Shylenai

Zone: Teldrassil

Cost: 50 (unlimited supply)

Pet Battle: [23-24] Twilight Highlands

Trading Card Game: Heroes of Azeroth

Drop: Ji-Kun [??+]

Zone: Throne of Thunder

Approximate Drop Rate: 1 in 1000

Prerequisite Quest: Rescue OOX-09/HL! [35]

Zone: The Hinterlands

Prerequisite Quest: Rescue OOX-22/FE! [37]

Zone: Feralas

Prerequisite Quest: Rescue OOX-17/TN! [48]

Zone: Tanaris

Quest: An OOX of Your Own

Zone: Booty Bay

Vendor: Rillie Spindlenut

Zone: Icecrown

Cost: 40 (unlimited supply)

Quest: Skywing [65]

Zone: Terokkar Forest

Promotion: Wow/Battle.net Account Merger

Vendor: Doru Thunderhorn

Zone: Icecrown

Cost: 40 (unlimited supply)

Vendor: Sairuk

Zone: Dragonblight

Faction: The Kalu'ak - Exalted

Cost: 12 (unlimited supply)

Vendor: Tanaika

Zone: Howling Fjord

Faction: The Kalu'ak - Exalted

Cost: 12 (unlimited supply)

Drop: Kael'thas Sunstrider [72+]

Zone: Magisters' Terrace

Approximate Drop Rate: 1 in 16

World Event: Pilgrim's Bounty

Achievement: [Pilgrim]

Category: World Events

Pet Battle: [1] Orgrimmar; [3-6] Azshara; [17-18] Winterspring

Trading Card Game: March of the Legion