It's is possible to turn liquid mud into solid stone in 10years time? And while the mud soft i'll put a champion spark plug in and then say's this is 10million years old? Possible??

Don't forget to put fossils in it to make it look pretty. Did they even bother to date the rock? Is that even possible?

Impossible Don't forget carbon dating and the fact that it takes millions of years for anything to turn to stone

Are u referring to the Coso Artifact?