Earplugs. Throat lozenges. Tiny hard candy. Custom tiny water bottle. Cheap sunglasses in your colors. Stress ball. Hair ties. Tiny bottle of emergency hairspray. Bleach pen. Fancy chap stick. Sunscreen. Nail polish remover pads. Nail clippers. Nail file. Nicorette gum if they’re smokers but can’t smoke at the venue. Regular gum. Tissues. Fancy pen (or some writing utensil because they’ll need it at some point). Post-its for large drink/food orders. Starbucks gift card. Bandaids. Blister pads. Tiny perfume. Advil.