I found a little stone that is shaped like a tube, with a hole that goes all the way through it, which I thought was a bit odd. Is this a naturally occurring shape and if so, how does it come about?
Also, the second stone was found nearby and it seems to have a similarly tube/cone shaped piece embedded in it. It's not a proper tube, but there is a little hole or indentation at the end of it. Are these two things related?