I like throwing around ideas. I have no idea for BRD, no one uses bows in Kingdom Hearts. And a lot of Keyblades look like Axes, so picking one for WAR was hard. Picked Axel's Chakram's for MNK, seemed like a good fit if they sized them down.

Dream Sword and Shield for PLD
Oblivion for WAR
Souleater for DRK
Oathkeeper for WHM
Book of Retribution for SCH
Fair Game for AST
Dream Staff for BLM
Akashic Record for SMN
Lindworm for DRG
Eternal Flames for MNK
Graceful Dahlia for BRD
Sharpshooter for MCH