There’s a couple different ways to make the plarn but this is super simple, all you need is scissors, and you can do it as you go. That said, I would follow a single-crochet tutorial online with some kind of string even like a shoelace or something first because I found the plarn somewhat difficult to work with at first and it would’ve been much harder if I didn’t already have that basic stitch down.
I mentioned this on another sub but they were super displeased that I interrupted their extremely important political discourse about politicians and political parties memeing at each other. I suspect they may have also been upset that I was referencing activities they have difficulty engaging in; upcycling being only one example.
You could always go find whatever bottle my mother crawled into and dump her out. She probably won’t teach you how to crochet since she’s old AF but it’d be funny.