Photo Credit Carla Nyanyo
Today is a tutorial of sorts with a bit of a personal story attached. It's not a tutorial you could follow exactly as you are very unlikely to have exactly the same sort of knit that you want to recycle but hopefully you might be able to follow the steps and improvise to suit what you have.
I'd had this beautiful piece of hand knit for ages.
...and unpicked all the bitty bits to end up with another nice row of loops on the other long side.
So at this point I have a long thin piece of knitting that's all loops along both long edges.
I folded it in half, wrong sides together, so the long sides were basically doubled up. Then, starting from the unfolded edge, I crocheted the loops together using UK double crochet, that's single crochet in US terms. Hopefully the photos show it better than I can explain.