May we suggest:
CJ Recht Subway Pendant - sterling
The Subway pendant! The dangling version of the subway ring…. Can be used to back people off when they get a little too close to you on the subway….and it will leave a mark. Shown in sterling, also available in bronze, Take a look at the matching stud earrings…..and the ring, of course. Dangling on a sterling chain 18 inches long, the sterling Subway pendant is 180.