My girlfriend called me up today saying she found her chihuahua/rat terrior playing with this and one other like it on her property today. I haven't got a chance to see it myself, but it looks like an oketee Corn to me, same as the one I have. The problem with that analysis is that this was found in Livingston County in Mid Michigan, where as far as I'm aware it is too cold for corns. She'll be brining it to me tomorrow. For size reference, that is the bottom of a 3 gallon pail.

Any help positively identifying?