Perhaps everyone else has seen this, but I ran across it by accident while watching some links via Kmkat on You Tube.
There are lots of other videos about it, too. I have a friend whose daughter is highly enamoured of finger knitting, but Mom is stumped on what to do with the miles of product. (Can’t just throw them away when no one is looking, I guess.) Maybe use it for arm knitting? I haven’t tried it myself, I’m more of a 2.75mm needle girl, I am.
Still, I’m pondering projects for kids — a giant ball of t-shirt loops and make a rug?