Hi. Welcome.
The speckled marbles with the dark base are from Mexico, made by a company known as Vacor. They could be as old as the 1980's, or could have been made more recently. The style name I know them as is "Galaxy". But there might also be another style name for them.
The rough marble in front looks like it might have spent some time in an aquarium. Some companies put a rough finish on marbles on purpose. That finish looks like it might be water wear though.
The blue one with white speckles. Not sure about that. I'm pretty sure modern though. Maybe Mexican. (Or maybe Asian.)
The front right one ... not sure about that either ... more views might help. That one might have a chance of being older.
So far, I'm not seeing anything which would be worth much money.