Ion Cannon

Promotion: Xbox + Mountain Dew, Rockstar Energy Drink, and Doritos

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 1,100

Vendor: Vinidcator Nuurem

Zone: Stormshield

Faction: Council of Exarchs - Revered

Cost: 1000 2000 (unlimited supply)

Vendor: Burt Macklyn

Zone: Burning Steppes

Cost: 3 (unlimited supply)

Drop: Cache of Innovation

Zone: Ulduar

Approximate Drop Rate: Unknown

Vendor: Gill the Drill

Zone: Thaldraszus

Cost: 2750 (unlimited supply)

Drop: Box of Collapsed Reality

Approximate Drop Rate: Unknown

Drop: The Curator [??+]

Zone: Karazhan

Approximate Drop Rate: 1 in 20

Drop: HK-8 Aerial Oppression Unit [??+]

Zone: Operation: Mechagon

Approximate Drop Rate: Unknown

Profession: Junkyard Tinkering

Taught By: [Blueprint: Microbot XD]

Zone: Mechagon

Promotion: Xbox + Mountain Dew, Rockstar Energy Drink, and Doritos

Profession: Engineering [250]

Drop: Blingtron Gift Package

Approximate Drop Rate: 1 in 5000