It looks like this hat has a feather and fan pattern just on the lower edge. You ought to be able to use a pattern for a plain one and integrate the feather and fan into it.
Cast on a multiple of 18 stitches + whatever you want for a border, but at least 1 stitch on either end. Assuming 1 stitch at each end, work the following 4 rows until you reach desired length:
Row 1: knit
Row 2: purl
Row 3: k1, * k2 tog 3 times, (k1, yo) 6 times, k2 tog 3 times * repeat from * to * until last stitch, k1
Row 4: knit