My name is "Fossil". I'm from northern Indiana and I'm 25. These are some of my best personal finds and all are from the surface. The bone beamer was in crystal mint condition before my parents dog got a hold of it!!! Ouch, I'll never live that down. It was used to dehair or scrap hides on top of logs or round surfaces. 
The turkeytail is made out of the best sonora flint I've ever seen. Talk to ya later.
Happy hunting!