Found these on my land in western NC. They do not look like 99.9999% of the rocks around here, they're too smooth, well-shaped and have what appear to be tool marks on them. The larger one looks similar to a tomahawk head which was on display at teh Charles T Hall Museum, the smaller one looks like it was a work in progress, ot is nicely carved and pointed, but still flat and rough on the bottom side.

The spear point was found a few years ago on my proerty, while digging a hole.

I'll try for a better exposed photo wehen the outdoor light gets better.