Spin pins are great, like lindygirl1960 said, but they might not work for some hairstyles that are too short or are layered. You would just have to try them to find out if they work for you.
Something I use on my shoulder length hair that is not damaging is a big "jaw clip." I pull my hair back into a ponytail, twist it half a turn, make a sort-of bun, and put that clip over it.
Elastics are bad for my hair. Last summer I had a ponytail every day, and placed the elastic in the same part of my hair. After a few months, I saw that the part of my hair that was held by the elastic was rough and frizzy.
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