We started with some large projectile points and a knife from the Collins Collection:
SMU 92.1.2.41
And then we scanned a Wyandotte Chert Disc from the Collins Collection (SMU 92.1.177.286). Many discs like this were found at the Hopwell site in southern Indiana. More than 8,000 of these discs were found in a cache in Mound 2.