This is a very delicate little version of my “a bonnet for every little princess”. The fit is the same, but the construction is different: it is best with a provisional cast on, and a straightforward graft at the end, but you could instead cast on in your preferred manner, cast off at the end, and pick up stitches for the tie cord casing, meaning no tricky techniques.
It takes a little longer in the fine yarn, but i think it’s worth it.