Yes
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Methinks you’re fishing, eh? 
I’ld keep that one for the myself. 
If you’re near the town of Elbe, near the southwest corner of Mount Rainier National Park, go see what Iron Dan Klennert makes with his driftwood treasures at his sculpture park. In addition to the examples he has on the linked page, we drove by Alder Lake a few years ago and got to view a life-sized driftwood horse and an even bigger fish on the lake’s floor that he had made. (It was a dry summer so there wasn’t a whole lot of actual lake.) He mainly sculpts in scrap metal but loves the driftwood too.
I have a collection of very, very tiny perfectly formed seashells. Many of them are only a centimeter or two big. How do I find them? Glad you asked. Sometimes while beachcombing, you’ll come across a patch of broken up shells all drifted together. Just sift though a handful or two to see if you can find any tiny, tiny shells. Some patches will yield none but if you find a few shells, I can guarantee you there will be a bunch more if you’re willing to keep looking. At least, that’s been my experience on the fairly placid shores of Puget Sound.
Dead salmon produces a similar smell that only a turkey vulture could love.
I hunt for agates and have a few hundred of them. Not valuable, but they sure are pretty. When I was in 5th grade, though, I found a chunk of jade that was the size of an adult thumb. That was pretty cool.
I’ve found several pieces of jewelry, some apparently quite valuable antique glassware, and a bunch of real-agate marbles from the turn of the century.
The beach in front of my childhood home was once the city dump (around about 1870 - 1910) and the tourship dock (around the same era) which was abandonded after a tourship sank at the dock (because of the fairly treacherous reefs there - who the hell decided to put the dock dead in between two really nasty reefs is a mystery as yet unresolved).
It’s beachcombing* paradise* for a kid. Wait until low tide, and go poke around the stuff. Not only were there scads of fascinating things - anything that could reliably hold water became a tidepool when the tide was low. Critters and beasties galore! As a bonus, it always strews seaglass all over every beach for 100 miles 
My husband lost his wedding band in Maui on our anniversary a couple of years ago and when he went to get it replaced in California the jeweller guessed that he lost it in Maui. He said that is the most popular location to lose a ring and he gets people coming in to have their bands replaced all the time. FWIW it was a really strong current and there were warning signs on the beach about it.
ETA I haven’t found anything of value on the beaches near my home except sea glass.
Geek Child #1 found a Nintendo DS portable game system half buried in the sand in about 2 feet of water. He shook the sand out of it and let it dry out overnight and it has worked fine ever since.
I lost my class ring on Salisbury Beach in Massachsetts in 1983. White gold with a purple stone. If anyone has found it, please let know. 
Then you can imagine the treasured heaves the dead loggerhead turtle gave me.
Other than shark’s teeth, I’ve found nothing.
I sadly have not found anything very valuable and in my younger days I looked and looked! My cousin once found $40 in the ocean and at the time (I was probably around 10 yrs old) we thought he was rich! My grandfather found a gorgeous gucci watch a few years ago that he gave to my mother. It was quite valuable and a great find!
Actually, I meant one or two millimeters big. Only took me three days to realize that. :smack: D’oh!
Aangelica, what a great place to grow up! I would have loved that! We used to go camping at a park that used to be a fort around the time you mentioned and a little later. My sisters have found a few bottles where there used to be a dock there but I had to settle for some bits of old broken pottery.
This made me giggle because when my children and I went on vacation to Florida this year I made mention of that and one of the kids knew what I was talking about so it was a running joke while we were there.
We didn’t find much, but then again we were more excited about being there for the first time ever. It was amazing. We were by Clearwater.
We must have looked like a bunch of hicks as we got out of the van. We had never seen white sand before! We were expecting it to be hot! The water was beautiful!
But I did forget to tell my children it was saltwater, and they went running in and came running right back out spitting. My friend and I laughed our butts off for a while over that.
How hard are sharks teeth to find? We have a bucket full of shells that I haven’t really looked through that my daughter picked up. I also still have sand everywhere. (that stuff sticks to everything!)
Anyway, back on topic.
I live in Iowa a few blocks up from the Mississippi river and when I was younger my grandmother took me to wander the river banks.
I found shells with buttons cut out of them. I think they were clam shells, but it was pretty cool to find shells with holes punched in them from a button company around here somewhere.