Above is a photo of the area I found four out of five of the mystery fossils shown above and below. The grass growing on the dune is called Marram Grass or American Beach Grass. This grass actually stabilizes the Michigan dunes along Lake Michigan which build up from the dominate westerly winds pushing the sand. The winds also reveal so many of the fossils I find to share with you.
I decided to post these photos of interesting mystery fossils, if that is indeed what they are. Some simply intrigued me, for example, number 2 is a perfect circle inside the stone and number 4 is something I have found before in similar shape. Hopefully, someone will glance upon these and help identify them. Maybe even you! Please make any suggestions that could provide possible some answers!