Here is a full size hair comb, based on a commercial sample.

I printed it with no problem, at 100% infill for strength and using a raft (I had some curling issues). Of course, resize it to your liking. 

This object was made in Tinkercad.
Edit it online [https://www.tinkercad.com/things/izYwoxYcFpd?sharecode=IVfbqyitSAfi_T7m_ebNLHAUZdIKQpYFpUysnWmKj24](https://www.tinkercad.com/things/izYwoxYcFpd?sharecode=IVfbqyitSAfi_T7m_ebNLHAUZdIKQpYFpUysnWmKj24)