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