Final Fantasy X/Equipment

Tidus
Swords and Shields are used by Tidus.

Yuna
Yuna uses Rods and Rings

Auron
Auron uses Katanas and Bracers

Kimahri
Spears and Armlets

Wakka
Blitzballs and Armguards

Lulu
Dolls and Bangles

Rikku
Claws and Targes

Customizing
When Rikku joins your party you may customize weapons and armor as you see fit with any ability, as long as you have the necessary items. The equipment must have at least one empty slot in order to customize.

The best empty weapons and armor to customize can be bought from Wantz at the southern entrance of Macalania Forest. He can only be found after your party is deemed traitors and escape from Bevelle. And then only if you donated to O'aka. If you didn't donate to O'aka, or skipped talking to Wantz on your climb up Mt. Gagazet, Wantz will not be there. If Wantz isn't there, fighting Varuna and Adamantoise in Sin and the Omega Ruins will periodically drop empty 4-slotted equipment.