Hmm, first attempt vanished
Anyhow, after a failed attempt to remove my finger, I was wrapped up in a heavy plaster cast. The tied-scarf improvisation was annoying, so I made a loop on the pegloom.
Once the "scarf" was done, I snipped it from the pegs, then untied the knots at the other end, then retied each strand to itself (make sense?).
What I should have done is put in half a twist to make a Mobius strip, to go around the neck.