Copied from my thread on the official Professions forums:
Flexweave Underlay: 23 Agility + 30-second parachute (60s cooldown)
Springy Arcanoweave: 27 Spellpower + 30-second parachute (60s cooldown)
Hand-Mounted Pyro Rockets: 1654-2020 damage (45s cooldown)
Hyperspeed Accelerators: 340 Haste for 12 seconds (60s cooldown)
Reticulated Armor Webbing: 885 Armor
Mammoth Cutters: 1 Saronite Bar, 1 Volatile Blasting Trigger (makes 1000)
Saronite Razorheads: 2 Saronite Bars (makes 1000)
Nitro Boosts: 12 Crit and 12 Hit plus 5 second speed boost (3m cooldown)
Goblin Beam Welder: Restores 7000 HP to a friendly mechanical target over 10 seconds (2m cooldown) - CONSUMABLE ITEM (30 charges)
MOLL-E: 4h cooldown
Engineer "enchants" still don't stack with real ones
Goblin Beam Welder: CAN be used on friendly siege engines in Isle of Conquest (probably also on Ulduar/Wintergrasp). CAN be used while riding passenger on a Demolisher - didn't get to passenger on other vehicles. Requires 410 skill to learn, 400 skill to use. 6 Saronite, 3 Crystallized Fire, 3 Crystallized Water to create one (30 charges).