Big Hair clips are very popular amongst khaleeji women (UAE, Arabian Peninsula). A hair clip is "mishbak" (مشبك) or shabasa in Arabic. There are many huge and colorful hair clips sold in the shops. Khaleeji girls prefer to use a massive hair clip as it helps to create a necessary volume under the scarf (sheyla) that is to achieve the trendy "hump" look. All you need to do is to pin your hair with a huge hair clip on top of your head and put a sheyla on afterwards.
As'salaamu Aleikum! I sell flower clips that girls in the Arab gulf wear under their hijab. Consequently, clips like these are difficult to obtain outside the middle east. Luckily, I know a few shops that import them from Lebanon and the UAE. This page right now is for YOU who don't live in the UAE to obtain one.