These are the genius contraptions called spin pins, and they purportedly “do the work of 20 bobby pins.”You can get them at Target for $3.79. You can also get the Magic Scroo on eBay for even cheaper | 21 Ridiculously Easy Hairstyles You Can Do With Spin Pins
I tried these over the weekend and they really work. They also come in mini's. Ordered mine from Amazon. They'll be here the end of the week. Goody Simple Styles Spin Hair Pins. You simply gather hair at the nape of your neck and twist it into a bun. Then spin one pin in from the top and the other up from the base. Your hair will stay in place without any ponytail holders or bobby pins.