- A faded Blockbuster membership card
- A set of bat-branded brass knuckles
- Aerosol bottled bat urine (for marking territory)
- Criminals’ teeth
- A Rough Rider condom from 1985 (expired)
- Weathered family photo of the only time Thomas and Martha Wayne took their son to Six Flags
- A $100 bill paperclipped to a note that reads: “If corpse found, please return to A. Pennyworth Esq.”
- Arby’s receipts