An adult sized headband with comb teeth - The teeth should point towards the back of the head. Push headband in your hair starting from the forehead. 

I modelled this after my old headband with slight modifications. 

I printed it in silk PLA. One tooth (the very tiny one at the low end) broke off right after printing when material was still slightly warm. Since then no more breakage. Have been wearing it for a week now. It sits firmly in place, no shifting around. 

On my smooth flexible PEI sheet I did not need a brim. 

Layer: 0.16

Perimeters: 4

Infill 50%