Miscellaneous Aquatic: WoW Battle Pets

Drop: Hellscream Laborer [90], Kor'kron Marauder [90], Mercenary Engineer [90]

Zone: Northern Barrens

Approximate Drop Rate: 1 in 6,600

Pet Battle: [7-9] Desolace; [25] Tanaan Jungle

Drop: Varasha's Egg

Zone: Spires of Arak [96-98]

Drop Rate: 1 in 1

Drop: High Warlord Naj'entus [??+]

Zone: Black Temple

Approximate Drop Rate: 1 in 20

Quest: Mastering the Menagerie [??]

Zone: Lunarfall, Frostwall

Drop: Big Bag of Pet Supplies

Approximate Drop Rate: 1 in 50

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

Profession: Fishing [1+]

Zone: Darkmoon Island

Approximate Catch Rate: 1 in 250

Profession: Fishing

Vendor: Conjurer Margoss - Good Friends

Zone: Dalaran (Broken Isles)

Cost: 50 (unlimited supply)

Drop: Morogrim Tidewalker [??+]

Zone: Serpentshrine Cavern

Approximate Drop Rate: 1 in 11