@GustavinoBevilacqua @peppenamir I cut a few and use them as extremely strong and durable zip ties. Stuff I fixed with them (tied it on and then heat gunned it into place) still holds up strong five or so years later being outside in frost and summer sun (50 C at least next to concrete wall). BUT I cut like, five bottles and I still have most of the material, probably will last me a lifetime. They are also nice to heat gun onto the legs of diy outdoors wood furniture, which takes much less work lol. And lasts just as long.

Anyway the point I wanted to make was that to cut that original five or so bottles up took me about two days... If there's any design on that bottle, you'll have a very hard time turning it smoothly, it might even be impossible. And there's some kind of shaping/raised lettering or stuff put on most of them.