I used to have most of these but my file got corrupted before I could get the achievement, go figure.
IGN/GT ON 360: The_49th
(S) SWORD • (H) HAMMER • (R) RIFLE • (P) PISTOL
COMMON • UNCOMMON • RARE • RELIC • UNIQUE
BRIGHTWALL
Merchant's Bodyguard (S)
Lunarium Pounder (H)
Facemelter (R)
The Barnumificator (P)
BOWERSTONE
Mr. Stabby (S)
Faerie Hammer of the Moon King (H)
Scattershot (R)
Reaver Industries Perforator (P)
AURORA
The Love Sword (S)
Dragonbone Hammer (H)
The Hero's Companion (R)
The Bonesmasher (P)
EXTRAS
Slimquick (S) +1
The Splade (S) +1
Aurora's Shield (H) +1
Scythe's Warhammer (H) +1
Sorrow's Fist (H) +1
Trollblight (H) +1
Arkwright Flintlock (R) +1
Ol'Malice (R) +1
Swift Irregular (R) +1
Mirian's Mutilator (P) +1
NEEDED
Avo's Lamentation (S)
Really Sharp Pair of Scissors (S)
Souldrinker (S)
The Swinging Sword (S)
Hammer of Wilmageddon (H)
Jack's Hammer (H)
Mallet's Mallet (H)
The TYPO (H)
The Equaliser (R)
The Sandgoose (R)
The Shrieking Pilgrim (R)
Simmon's Shotgun (R)
Skorm's Justice (R)
Bloodcraver (P)
Briar's Blaster (P)
Chickenbane (P)
Tee Killer Shooter (P)