Hardened spacers often treat their personal trunk as a touchstone during long voyages. Inside the lids of many, one can find the name and contact info of the owner rudely carved into the plastic.
Many amateur smugglers think the innocent looking trunk makes an ideal hiding spot. To this end, less than reputable manufacturers claim to offer "inspection-proof" containers. These often include false bottoms and "scanner resistant" liners. Unfortunately, this tactic is wearing a little thin among experienced customs officials, who have become pretty adept at spotting fakes.