Ancient Chinese Combed With Fish Bones?

In the era of no combs, people were unkempt and often had disheveled hair.

One of the Huangdi’s consort, Fang Leishi, gathered the women and smoothed their hair one by one with her fingers.

While she was eating fish, she suddenly discovered that the fish bones looked like human fingers.

Although it can be straightened out, use the fish bones easily punctured dan can break easily.

What can she use to replace fish bones?