Toys?

This is my response to Ken as for some reason I cannot send my reply right after his comment. ' Thanks Ken. The idea of a playground seems appealing and interesting. I have often thought that the stones with many carved images could have been a toy or a game. A game for the sculptor to see how many images of animals and portraits he/she could put on a rock and how many could be guessed by a child or an adult alike. The difference here would be that this would have been a pretty sophisticated game as the images are often hidden and only visible at a certain angle of the light.