I have hot glued the ends together as well as handsewn a couple of stitches with the two ends overlapped
Either way holds very well! I use a piece of wool felt on the back of the headband/flower.
I don't use (or trust) E6000! I use hot glue.
Only a few Michael's stores carry the tiny flowers. I have to drive an hour away to pick mine up.....when I have 2 near by but they don't carry them
This week they are buy one get one free!