So alot of the weapons added to the golden saucer tend to be from MOBs found in the game like the gigas stuff and the blood sword for example.
What weapons or armour from a MOB or boss do you really want?
Personally I wouldn't mind the cutlass you see some succubi use. And the spiked fist weapons giants use.
Would love to see some armours based off the mobs though. Like a giants caged helmet or the suit of armour Dullahans wear.