The beautiful Fairy Castle of Princess Callia, favored daughter of deranged Emperor Sentatian.
It is a box of fairly standard children’s toys. There are dolls, blocks, carved knights and animals. Everyone will think, “Oh I had one of those when I was young.”
Pirates' many bejeweled rings and piercings actually had a practical purpose - when the pirate or sailor died, the rings could be taken off as payment for a proper burial, saving him from a watery grave. This could be tied into regional culture, or made into a quest (The Pirate's Lost Rings, etc.). Also gives treasure-seeking divers another thing to look for besides crusty old chests.