There has to be and I'm sure someone is already capitalizing on it. This is something I'd not only be great at but that I would enjoy doing. Sucks that I'm so freaking business stupid or I might make a dime or two.
I actually thought about that shortly after I retired. They do most of their work overseas, I'm talking about here. I'm sure there is a firm somewhere that does it, if not there should be. I might look into what it would take to start one.
My brother-in-law does metal detecting for Civil War artifacts. He puts them as well as fishing, hunting, etc. videos on Youtube and makes a few bucks. I think his more popular videos have 40k+ views.