Rather than re-coding items to accept job-specific glamours, which is clearly never going to happen in the name of more armoury space, wouldn't it be better/easier to do the following?

- Make a "costume" slot. Put it right under "feet", across from your job stone.
- Make a "costume" item (or it could be a "mannequin") that you equip to this slot
- The whole point of the costume/mannequin is that you can glamour equipment onto it
- For example, you could glamour an ironworks hood of casting on the "head" of the costume/mannequin, a felt bliaud on the "body", etc.
- When you equip the costume/mannequin, it overwrites the appearance of whatever slots it has glamours for, abiding by the usual restrictions of job
- This would allow you to have multiple costumes/mannequins, and would still follow the same glamour prism system currently in place
- You could still glamour items individually if desired, costume/mannequin just gives you an option that lets you pick a glamour set per job

Presumably this would be less data than making each item's glamours job-specific?

Honestly, I'm not sure why the system wasn't set up like this to begin with, since a lot of people will play stuff like BLM and SMN, PLD and WAR, and want them to look, well, DIFFERENT.