This is just my headband pattern but reworked to add the crown peaks!
5mm hook, worsted weight yarn of your choice
0-3mths FDHDC 56 and slip stitch together to form a circle ch 2 and turn,
Row 2 HDC in the next 5 and then decrease. Continue until you have 48 HDC’s join, ch 2 and turn
Row 3 – ? (You can pick the height of the crown so as many rows as you like!) Finish off and weave in ends
Rejoin yarn at the top row , 4 DC in the first stitch, picot, 3 DC in the same stitch, slip stitch into the next – continue around top of crown. Finish off and weave in ends
3-6mths FDHDC 60
Row 2 – the decrease on this are uneven – it’s about every 6th and then every 7th stitch as you go around until you have 52 HDC at the end of your row. Join and ch 2 Continue as 0-3mth pattern.
6-12mths FDHDC 64
Row 2 – HDC in the next 6 and then decrease. Continue around until you have 56 HDC. Continue as 0-3mth pattern
12-18mths FDHDC 68
Row 2 – the decreases on this are uneven – space them evenly until you have 60 HDC at the end of your row – continue as 0-3mth pattern
18mths – 10yrs approx. FDHDC 72
Row 2 – HDC in the next 7 then decrease – continue around until you have 64 HDC, continue as 0-3mth pattern