To get the weapons you need the Celestial Mirror, head to the Calm Lands and obtain a chocobo from trainer. Ride to the south of calm lands near where you came in from Macalania Woods, and on the east side you should see a broken bridge and a chocobo feather on the ground. Press [x] near the chocobo feather. Continue east to the Remiem Temple. Examine the sphere on the left side of the temple, then talk to the chocobo on the right to race the second chocobo on the left. If you make it to the center of the circular track quickly enough, you'll be rewarded with the Cloudy Mirror. Then talk to the mother and son at the entrance of Macalania Woods. Find the father, speak to him. Go back to the entrance and speak with the mother and father again, and keep talking to them until they mention their missing son. Then head up the sparkly path to the son. Examine the area behind him to turn it into the Celestial Mirror.

Tidus: Caladbolg- Weapon location: Northwest corner of the Calm Lands, behind a mandala at the bottom of a narrow hidden trail. Win all four chocobo races, and the person blocking the pathway will be gone.

Sun Crest location: In a treasure chest in the same area where you fought Yunalesca. It's on the top-left side of the screen, and blends in with the wall.

Sun Sigil location: After you can control the airship, it's a prize for winning the fourth chocobo race against the other chocobo rider with a time of better than 0:0:0.

Abilities: Break Damage Limit, Triple Overdrive, Evade & Counter, Magic Counter

Yuna: Nirvana - Weapon Location: In a chest at the Monster Arena to the east of the Calm Lands, after collecting at least one of each monster from the Calm Lands.

Moon Crest location: Besaid Island beach, in a chest in a cove on the east side, get there by swimming.

Moon Sigil location: Defeat all of your Aeons at Remiem Temple, then perform the Farplane send off for Belgemine.

Abilities: Break Damage Limit, Triple Overdrive, Double AP, One MP Cost

Wakka: World Champion- Weapon Location: After you can control the airship, the bartender in Luca Cafe will give this to you if you've won at least a few Blitzball games.

Jupiter Crest location: Luca Stadium, in a locker in the Besaid Aurochs locker room.

Jupiter Sigil location: After winning all four of Wakka's Overdrives, this is a random grand prize in the Blitzball League game.

Abilities: Break Damage Limit, Triple Overdrive, Double AP, Evade & Counter

Lulu: Onion Knight - Weapon Location: In a sealed chest in the pool at Baaj Temple, hidden in a corner on the opposite side of the pool from the doorway to Anima's shrine.

Venus Crest location: In a treasure chest that appears during your second visit to the Farplane.

Venus Sigil location: Dodge the lightning at Thunder Plains 200 consecutive times by pressing [X], then go back to Rin's travel agency and examine the treasure chest out front. Do not save in between dodges, leave the screen, because this will reset the dodge counter.

Abilities: Break Damage Limit, Triple Overdrive, Magic Booster, One MP Cost

Kimahri: Spirit Lance - Weapon Location: At Thunder Plains, pressing [square] at any 3 glowing stones, then return to the south part of the plain and follow the ghost to a wrecked tower. It's on the right side of the screen, in the rock wall.

Saturn Crest location: Mt. Gagazet, in a treasure chest between the pillars on the left, just past where you fought Seymour.

Saturn Sigil location: Macalania Woods butterfly-catching game, after getting the airship. To start the minigame, talk to the harp-playing guy near the entrance, then touch the blue butterfly. The object of the game is to touch all the blue butterflies in one area before time runs out.

Abilities: Break Damage Limit, Triple Overdrive, Double AP, Evade & Counter

Auron: Masamune - Weapon Location: Mushroom Rock Road. At the bottom of the Calm Lands valley, at the opposite end of the area from the Cave of the Stolen Fayth, take the Rusty Sword. Then go to Mushroom Rock Road and continue straight ahead north until you see a little green square on the area map. The green square represents a floating mushroom stone, ride it up, and stick the sword in the ground next to the statue of a warrior standing over a slain behemoth.

Mars Crest location: In a chest in the old part of Mi'ihen Highroad. To get there, go north on Mi'ihen Highroad until you reach the entrance of Mushroom Rock Road, then turn and go south.

Mars Sigil location: Unlock any combination of 10 Area Creations or Species Creations bosses at the Monster Arena to the east of the Calm Lands, and the trainer will give this to you.

Abilities: Break Damage Limit, Triple Overdrive, First Strike, Counterattack

Rikku: God Hand - Weapon Location: In a sealed chest at the bottom of Mushroom Rock Road, get by selecting Password on the airship, then inputting "GODHAND".

Mercury Crest location: In a treasure chest in the fourth area of Sanubia Desert, in the northwest.

Mercury Sigil location: Sanubia Desert, in a treasure chest in the area protected by a sandstorm. To get rid of the sandstorm, you need to play a minigame with the Cactuars after you can control the airship.

Cactuar locations (might not be accurate): (1) found in the first area, the oasis, to the right of the savepoint.(2) running around in the northwestern alcove of the second area.(3) hiding behind the Al Bhed 20% sign in the fourth area; examine it to find him.(4) running back and forth in the ruins in the northwestern part of the third area.(5) with 4(6) hiding behind the save point inside the tent in the second area; examine it to find him.(7) hiding in a treasure chest in the southwestern corner of the third area. (8) running around inside a pit in the fourth area. (9) at the first area, then beams up to your airship and can be found on the roof.(10) appears automatically after bringing the rest of the green Cactuar spheres to the glyph.

Abilities: Break Damage Limit, Triple Overdrive, Double AP, Gillionaire

wow that took a long time to make. hope it helps.