Explode

Drop: Siegecrafter Blackfuse [??+]

Zone: Siege of Orgrimmar

Approximate Drop Rate: 1 in 125

Drop: Rotcap [97]

Zone: Spires of Arak

Drop Rate: 1 in 1

Pet Battle: Operation: Mechagon (Dungeon)

Drop: Spine of Deathwing [??+]

Zone: Dragon Soul

Approximate Drop Rate: Unknown

Drop: Strange Spore

Zone: Gorgrond

Drop Rate: 1 in 1

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: 1 in 1,670

Quest: Bert's Bots [1]

Zone: Dun Morogh

Drop: Leprous Sack of Pet Supplies

Approximate Drop Rate: Unknown

Vendor: Vinidcator Nuurem

Zone: Stormshield

Faction: Council of Exarchs - Revered

Cost: 1000 2000 (unlimited supply)

Quest: Report to the King [90] (Alliance), Warning the Warchief [90] (Horde)

Zone: Stormwind, Orgrimmar

Drop: Blingtron 6000 Gift Package

Approximate Drop Rate: Unknown

Vendor: Vindicator Jaelaana

Zone: Boralus

Faction: 7th Legion - Revered

Cost: 200 (unlimited supply)

Vendor: Ransa Greyfeather

Zone: Zuldazar

Faction: The Honorbound - Revered

Cost: 200 (unlimited supply)

Pet Battle: [25] Mechagon

Profession: Pandaria Engineering [50]

Taught By: Engineering Trainers

Vendor: Dana Pull

Zone: Tiragarde Sound

Cost: 75 (unlimited supply)

Pet Battle: [14-15] Felwood

Pet Battle: [25] Mechagon

Drop: Prince Malchezaar [??+]

Zone: Karazhan

Approximate Drop Rate: 1 in 20

Profession: Engineering [205]

Taught By: [Schematic: Pet Bombling]

Vendor: Marcus "Bagman" Brown

Zone: Westfall

Cost: 3 (unlimited supply)

Drop: Arachni [120+]

Zone: Vol'dun

Approximate Drop Rate: 1 of 3 parts

Created From: [Craft Mechanical Spider]

Pet Battle: [25] Mechagon

Drop: Fel-Touched Pet Supplies

Zone: Tanaan Jungle [100]

Approximate Drop Rate: Unknown

Drop: Strange Spore

Zone: Shadowmoon Valley (Draenor)

Drop Rate: 1 in 1

Drop: Fel-Touched Pet Supplies

Zone: Tanaan Jungle [100]

Approximate Drop Rate: Unknown