Apparently it's time for the cicadas in the south to start crawling out of their exoskeletons after laying dormant for thirteen years. And to commemorate this occasion, many people are wearing this jewelry.
Yes, a bug on your hand. I would be afraid someone might try to swat it and bruise my hand instead.
Great. A insect around the neck. How attractive.
The only thing that I think would be worse would be one on those little brooches that had a live chameleon attached with a chain from the 50's.