How do you get these things?

Weapons:
Acacia Hat
Ebon Blade
Master Sword
:choc2:
Any weapon with Double Sword
El Cid Sword
Kain's Lance

Cards:
Almighty
R6
:choc2:

Rods:
Thing with Blizzaga
:choc2:
Thing with Firaga

Shields:
:choc2:
Reverie shield

Mission Items:
Bomb Shell
Stuffed Teddy Bear
:choc2:
Thunderstone

Uh, the teddy bear is from a after-end boss mission, I think. Random battles and missions for the rest. I got all of those from missions.

I just got Acacia Hat and Thor's rod.

Beat th emission again, and it gets better. Same with Sequence, and something else.

I really don't get the El Cid Sword.
IIRC, Kain's Lance is from another game, right?

Yes, 9. And refers to more.

You mean the 21th person on Crossblade's signature?

Kain from 4, and its in FF9 as a weapon for Freya.

I finnaly finnaly finnaly finnaly Kain's Lance!

Mission, right?

No, a tourney mission gave it to me as a random item(with sequence, which has customisable attack strength)