Last request for help for this Craigslist batch. Chips are very cracked all over, but not broken. Slight pressure opens cracks. Yellow chip doesn’t have any cracks, but there is what I would assume is a plastic injection mold mark along the radial edge. The others’ edges are quite worn/rounded. None will stand on edge. Anyway, these may be worthless (the listing included a carousel of plastic chips, but also some more valuable chips, which I’ll show off separately), but any help IDing these would be appreciated.