It makes me guess what culture it came from, what message the artist implied when he was painting it. It is a thought-provoking object that has no practical function and is created for the sake of self-expression of the artist who had made it. It gives rise to a train of thoughts on primitive African societies when I am looking at it. It might as well have been made by an African artist, though it is not a case. It is surely a work of art, in my opinion.
There is probably a toy at the third image with a metal ball inside. It might be perceived as a work of art from some subjective point of view, though in my opinion it is made strictly for the purpose of entertainment of children and is not a work of art per se. Although there is a specific and quite precise definition of what art is, this notion extends into a subjective category and it is not an easy task to circumscribe the limits of it. Thus, in my opinion, this toy is not a work of art. On the other hand, it might as well be an allegorical manifestation of the way someone who created it looks at the world and, if placed within a certain context, could be perceived as a work of art.
The blue plate on the fourth image might be a work of art for some people, while others wont consider it to be as such. Although it is created with a certain practical purpose to serve, it obviously applies imaginative skills of a person who made it. The surface of it is painted inside and these elements of its design make this object of pottery a work of art, in my opinion, though it might as well be solely perceived by some as a part of dinnerware and serve practical purposes