This vintage pattern is made available by Free Vintage Crochet.
This pattern instructs for the butterfly to be attached to a hair comb. But you could also attach it to your hair clip or on a headband. With that said, there are endless possibilities as you can use it on almost anything you like!
The pattern recommends a size 5 pearl cotton and a No. 2 steel crochet hook. Other materials include pipe cleaners and a small comb.