I've been beach combing for several years now. My collection of stuff is pretty interesting - hand blown glass globes used as floats for fishing nets,other floats of all shapes and sizes, sea beans, pieces of SpaceX rockets, lobster pot tags from Japan, pieces of plastic w Cyrillic, doll heads, plastic frogs... the ocean's bounty is limitless it seems. I even found part of a wrapped brick of Mexican dirt weed once.
This one didn't make it to the collection but I did pick it up to dispose of when I left the beach.
Why didnt you keep the doll?
I have a couple dolls heads already from a few years ago when a container of doll parts got washed overboard a container ship. I kept those. The is one just went into the recycle bins at the edge of the road/sand. I find so much that I just can't keep everything I find.