Giant Alien Kitchen Utensils?

Back a week or so ago, on Cape Cod, I spent a cold day walking nearby marshes... and came across this stone, and a buried tree stump. For a brief moment, I wondered what Giant had dropped his Stone Kitchen utensils?

More of my Cape Cod wanderings found here!
No idea why my mind goes there... but it does. I see something and for a flash, my mind makes this story up about what it is, and why it is there. maybe it is all the Science Fiction I read?

Decades ago, there was a story about viewing of a world where there are these beings that rule the world. they have homes or domiciles, and move about and dominate society. the longer the scientists from afar, viewed this world... the more the understood about the alien world. ...until eventually they noticed parasites moving in and out of the dominant species on the planet.

Eventually, we come to understand, the alien that dominates the planet is actually cars, dominating our Earth and the parasites are people, all viewed from the perspective of an Extra Terrestrial Being. You never know, for sure, until you are looking at something from all perspectives.