Spiny Oyster Shells Home Decor or Jewelry Pendant

So while I was revamping my supply of spiny oyster my supplier offered these full shells, they do a small hole drilled into the base so technically they could be work as a pendant but they’re pretty good sized and heavy. But they were just so colorful and neat I decided to grab a few and see if y’all liked them. I kept a couple for myself but have a few left to offer up for sale. 

Size-3-4”