Firstly, I recommend cleaning well your buttons and har clip to make sure they don’t have grease or dust. This helps make the glue adhere better and last longer
Then, decide how you want to decorate your hair clips creating a composition.
Glue the buttons you want to be part of some composition.
Next, add some hot glue to the hair clip.
Glue the buttons the way you like on the hair clip.
…and there you have it!!! One stinkin’ cute button hair clip!