How to make coon tails from claires stay in better?

a href="http://www.polyvore.com/cgi/img-thing?.out=jpg&size=l&tid=13232282" rel="nofollow"http://www.polyvore.com/cgi/img-thing?.o…/a so i got these last night and the clip thats clips onto your hair isnt really good cuz my hair is really thick and clipping it down with other clips isnt working so wut can i do?