This one is a piece of driftwood with a quizzical knot hole in it. It was found that way on the beach. So if you like natural wood, that is different, you'll love this one. It is on a black polished hemp-like cord with adjustable slip knots so it has lots of length options. You can purchase it on Etsy at:
https://www.etsy.com/shop/BeachWalkArtByKim