A visitor to the Knitters shop very kindly showed me how to make the ‘knot’ in these, by folding a rectangle of paper into the required shape for the joining seam!
For those of you not lucky enough to have had personal instruction there is a really clear video of it by ‘Just be Crafty’ here.
I have tried them in dk, aran and chunky weight yarns and would say that aran and chunky work best for me. They are made in (UK) half double crochet – back loop only, ending on a row of dc.
These ones are in Rico essentials soft merino (aran) Saffron (066) and Silver-grey (096), and Rowan pure wool superwash worsted Teal wash (discontinued). I used a 6mm hook and started with a chain of 72 for the aran yarn and 62 for the chunky version. Each headband took about 25g of yarn.
Now, who has 25g of yarn to spare to give one a go?