emergency kit:
eye drops (red eyes from crying = not a good look in photos!)
tampons (jic!)
bobby pins/safety pins
tissues
lipstick/gloss
lollies (sugar!)

my maids were great - they had to take me to the toilet to hold my dress and were very gracious!
they made sure my dress was always looking fab, I always had fresh lipstick on and they made me eat/drink