Found these in Callaway County, Missouri. Are they possibly Native American? The third image, the brick shaped one might be petrified wood? It looks heavy but is actually light as a feather. The second one has a distinct design band towards the upper third, although it is hard to see in the picture. These were found within a 15 mile radius of two seperate large authenticated discoveries. My imagination gets the best of me sometimes, so any tips on identifying would be ver much appreciated. Thanks for looking!