Funny, I found very few shark's teeth in Florida. But I found lots of them on South Carolina beaches.
That's cause us locals snatch their teeth out before we kill 'em and and grill 'em.
Shark steaks...yum.
Have you been to Venice Beach? It is shark tooth central. It is impossible not to find them there. We used to do a lot of fossil hunting on the Peace River. You can find a little bit of everything there. Sharks teeth (I have a few 3 inchers from there), manatee (Dunang?) bones, horse teeth, mammoth bones, etc...