“ Golden coins that turn to lead within a few hours of being taken from their place of origin, causing a lot of trouble for whoever spends them.”
“ is a lovely golden necklace that gradually transforms its wearer's skin into gold. Given enough time, this will prove fatal, but the wearer cannot remove the deadly jewelry without assistance. Some might be cruel and greedy enough to leave it on its victim...”
“ Surnames: The Chinese were among the very first cultures to adopt the use of hereditary surnames (around 2800 BC). But the custom didn't quite catch on in Europe - at least not until the Venetian aristocracy made it popular sometime between the 10th and 11th centuries AD. What culture made it popular in your setting and why?”