This would be more work than is probably called for, but I would love gear (particularly gear almost always for vanity like these) to have some silly vanity stats.

Something like "Minion's speed +100%", "Automatically replaces /laugh with /angry...Dark Knights are not jolly" for Cecil's helm, or "Any moogle you approach will throw stones at you. Imposter, Kupo!" for the moogle's cap.

Or other nonsensical effects.