I used this floral wire that I picked up at Dollar Tree a while back. I've also seen it at in the craft section Walmart.
I first tried to make the loop at the top of the stem freehand, but quickly learned it's difficult to make a nice smooth circle this way. A 2oz paint bottle works much better. :)
And this is the stem before crocheting. I think it could also make a cute fairy wand if you add some beads (or something soft) to cover the cut ends of the wire. But that will have to wait for another time.
And here is the finished flower. I'm quite happy with it.You can download the pdf in my Ravelry store.