Related Clues:

• Concert-hall litter
• Hurts one's toe, in a way
• Ticket remains
• Reentry requirements
• Split tickets?
• Re-entry requirements
• Concertgoers' souvenirs
• Decorative features I said should be put on ships
• Makeup pencils
• Theater buff's collection
• Movie reviewers often trash them
• Movie ticket remnants
• Often-discarded ticket parts
• Counterfoils
• Bits of trash often swept up with popcorn