Ch 21. (This will be the tie in the back, so make it longer or shorter if you like.) OR you can just leave a stretch of yarn un-used (as in the picture) to use for the tie. It's up to you.
7 sc. is the width I've decided on for my headband. If you would like yours to be skinnier or fatter adjust the above steps to reach your desired width.
Now, you simply hhdc across each stitch (skipping the very first stitch as your ch. 2 serves as the first stitch of each row). Then ch. 2 and turn. Make sure to crochet a hhdc in the top of the ch. 2. at the end of the row for a total of 7 hhdc in each row. Keep repeating the rows until the headband fits around your head from the bottom of one ear to the other.
Once you have reached your desired length you have to decrease the headband down to 2 single chain.
Now simply chain 20 (or however many you chose to chain at the beginning) to make the other end of the tie. Finish and tie off. Tuck in the loose ends.
Now for the flower.
Then using a hot glue gun or thread attach the pin back to the back of the flower and the button to the center.