This is a super new item and would be great for men or women for the Summer.
I have strung a fossil shark tooth from silver plated wire along with a length of beads - both wooden tube beads and a few Indian glass beads.

The shark tooth is a Bull Shark tooth  from Venice Beach, Florida USA and is from the Micocene era - 15-30 Million years old

The necklace is totally handmade and has a silver plated clasp and hook.
Simple, but looks pretty good!