Weapons
Cloud
Buster Sword-Originally equipped to Cloud
Tifa
Leather Glove-Originally equipped to Tifa Barret
Gatling Gun-Originally equipped to Barret
Aeris
Guard Stick-Originally equipped to Aeris
Red XIII
Mythril Clip-Originally equipped to Red XIII
Cid
Spear-Originally equipped to Cid, also buy it at Junon
Cait Sith
Yellow Megaphone-Originally equipped to Cait Sith, also buy it at Junon
Vincent
Quicksilver-Originally equipped to Vincent, also buy it at Junon
Yuffie
4-point Shuriken-Originally equipped to Yuffie
Weapons, Armor and Accessories
Mythril Saber-Buy it at Kalm
Hardedge-Buy it at Gongaga Village
Force Stealer-Buy it at North Corel
Butterfly Edge-Buy it at Cosmo Canyon
Nail Bat-Buy it at Junon
Rune Blade-Mt. Nibel
Yoshiyuki-Given to you by a man in Rocket Town
Murasame-Buy it at Wutai
Organics-Buy it at Icicle Inn
Enhance Sword-Gaea's Cliff
Crystal Sword-Buy it at Mideel
Apocalypse-Ancient Forest
Heaven's Cloud-Sunken Gelinka Plane
Ragnarok-Receive after defeating Proud Clod
Ultima Weapon-Receive after defeating Ultimate Weapon
Metal Knuckle-Buy it at Wall Market
Mythril Claw-Buy it at Kalm
Grand Glove-Buy it at Junon and Gongaga Village
Tiger Fang-Buy it at Cosmo Canyon
Diamond Knuckle-Buy it at Wutai
Dragon Claw-Buy it at Icicle Inn
Crystal Glove-Buy it at Mideel
Motor Drive-Costa Del Sol
Platinum Fist-Tifa's House in Nibel
Kaiser Knuckle-Whirlwind Maze
Work Glove-Buy it at Junon
Powersoul-Buy it at Junon
God's Hand-Received after defeating Carry Armor
Premium Heart-Abandoned Shop at Wall Market
Assault Gun-Buy it at Wall Market
Cannon Ball-Buy it at Kalm
Atomic Scissors-Buy it at Junon and Gongaga Village
Heavy Vulcan-Buy it at Cosmo Canyon
Chain Saw-Buy it at Wutai
Microlaser-Buy it at Icicle Inn
A-M Cannon-Buy it at Mideel
W Machine Gun-Railroad tracks at Mt. Corel
Drill Arm-Cid's House in Rocket Town
Solid Bazooka-Buy it at Costa Del Sol
Rocket Puch-Buy it at Junon
Enemy Launcher-Buy it at Junon
Max Ray-Sector 8 Midgar
Missing Score-On the stairs up to the Mako cannon
Mythril Rod-Buy it at Wall Market
Full Metal Staff-Buy it at Kalm
Striking Staff-Buy it at Junon and Gongaga Village
Prism Staff-Buy it at Cosmo Canyon
Aurora Rod-Buy it at Wutai
Wizard Staff-Buy it at Junon
Wizer Staff-Buy it at Junon
Fairy Tale-Receive after defeating Rude and Reno at Gongaga
Princess Guard-Temple of the Ancients
Parasol-Speed Square at the Gold Saucer
Diamond Pin-Buy it at Junon and Gongaga Village
Silver Barrette-Buy it at Cosmo Canyon
Gold Barrette-Buy it at Wutai
Adaman Clip-Buy it at Icicle Inn
Crystal Comb-Buy it from Mideel
Magic Comb-Buy it at Junon
Plus Barrette-Buy it at Junon
Centclip-Buy it at Costa Del Sol
Hairpin-Buy it at Junon
Seraph Comb-Receive after going through the Cave of the Gi
Spring Gun Clip-Ancient Forest
Limited Moon-Given to you by Bugenhagen while on disc 3
Slash Lance-Buy it at Wutai
Trident-Buy it at Junon
Mast Axe-Buy it at Icicle Inn
Partisan-Buy it at Mideel
Viper Halberd-Buy it at Junon
Javelin-Gaea's Cliff
Mop-Buy it at Junon
Dragoon Lance-Buy it at Junon
Scimitar-Junon's Underwater Reactor
Venus Gospel-Given to you by a man in Rocket Town (after the rocket's been launched)
Black Megaphone-Buy it at Junon
White Megaphone-Buy it at Junon
Green Megaphone-Buy it at Cosmo Canyon
Silver Megaphone-Buy it at Junon
Red Megaphone-Buy it at Icicle Inn
Crystal Megaphone-Buy it at Mideel
Trumpet Shell-Buy it at Junon
Battle Trumpet-Junon's Underwater Reactor
Gold Megaphone-Buy it at Costa Del Sol
Starlight Phone-Midgar
Blue Megaphone-Buy it at Wutai
HP Shout-64th Floor of the Shinra HQ Building
Peacemaker-Buy it at Junon
Sniper CR-Buy it at Junon
Shotgun-Buy it at Rocket Town
Shortbarrel-Buy it at Wutai
Silver Rifle-Buy it at Junon
Lariat-Buy it at Icicle Inn
Winchester-Buy it at Mideel
Outsider-Sunken Gelinka Plane
Supershot ST-Ancient Forest
Buntline-Buy it at Junon
Long Barrel R-Buy it at Costa Del Sol
Death Penalty-Lucrecia's Cave (Go to the Lucrecia's Cave in disc 2 and have Vincent in your party. Return to the cave in disc 3 and you will find Death Penalty.)
Boomerang-Buy it at Junon and Gongaga Village
Pinwheel-Buy it at Cosmo Canyon
Razor Ring-Buy it at Wutai
Hawk Eye-Buy it at Icicl Inn
Spiral Shuriken-Buy it at Costa Del Sol
Crystal Cross-Buy it at Mideel
Wind Slash-Buy it at Junon
Twin Viper-Buy it at Junon
Magic Shuriken-Buy it at Junon
Super Ball-Buy it at Junon
Oritsuru-Da-Chao Mountains
Conformer-Sunken Gelinka Plane