Small colourful plastic rings/seals collected from Australian beaches?

My local beach cleaning group has collected dozens of these over the past few years. No one can identify what they’re from! (Including various AI chatbots.)

They’re solid plastic, possibly part of a pull tab/ring, and at least some of them seem to have come from Colgate-Palmolive products. Are they from soap? Shampoo? What do they look like on the actual product?

It’s driving me crazy!!

Solved: https://plastic-bottles.ready-online.com/en/page/body-care-plastic-bottles.html