For this project, we used one 5g package of yellow Sugru. Start by kneading your Sugru into little worm shapes.
Squish between your fingers for about 30 seconds to soften it, then split into two worm shapes.
Smooth the worm shape of Sugru across the inside of the barrette. Keep smoothing until it feels very flat.
After you have smoothed out your barrette do the same thing with another barrette. Let dry for 24 hours. Try them on and enjoy the feeling of barrettes not slipping out of you hair!