Word of the day: tchotchke
A tchotchke is a small bric-à-brac or miscellaneous item. The word has long been used by Jewish-Americans and in the regional speech of New York City and elsewhere. It is Yiddish in origin.
The word may also refer to free promotional items dispensed at trade shows, conventions, and similar commercial events. They can also be sold as cheap souvenirs in tourist areas, which are sometimes called “tchotchke shops”.
I only just came across this word for the first time in a book on technological change.