older style Barbie
modern Barbie
I used a really fine baby yarn and 3.25mm or US-0 hook
sc decrease- pull up a loop in first sc, pull up a loop in second sc, yarn over draw through all 3 loops on hook
Begin top front
ch9
row 1 - skip first ch, sc in each stitch across, ch1 turn (8sc)
row 2 - sc in each stitch across, ch1 turn (8sc)row
3 - sc in first 3, 1sc decrease using next 2 stitches, sc next 3, ch1 turn (7sc)
row 4 - sc in each stitch across, ch1 turn (7sc)
row 5 - 1 sc decrease using next 2 stitches, sc in next 3, sc decrease using last 2 stitches, ch1 turn (5sc)
row 6-13 - 1sc in each stitch across, ch1 turn (5sc) repeat for 6 more rows (8 rows of 5sc)
row 14 - 2sc in first stitch, sc in next 3, 2sc in last stitch, ch1 turn (7sc)
row 15 - sc in each stitch across, ch1 turn (7sc)
row 16 - sc in first 3 stitches, 2sc in next stitch, sc in next 3 stitches, ch1 turn (8sc)
row 17 - sc in each stitch across (8sc)
row 18 - 2sc in first stitch, sc in next 6, 2sc in last stitch, ch1 turn (10sc)
row 19 - sc in each stitch across (10sc)
row 20 - 2sc in first stitch, sc in next 8, 2sc in last stitch, ch1 turn (12sc)
row 21 - sc in each stitch across (12sc)
end off
I looped a ribbon between the top stitch both front and back on either side and tied but you could just as easily use crochet chains. I worked in a small hair tie in the first and last rounds with no difficulty. Experiment with it :)
PS. This is untested and I am no way affiliated with Matel
Oh, yes I am Australian but I speak crochet in US terms so don't think you need to convert anything