Men's Coarse Hairbrush

Update (8/19/2022): Rev C hairbrush has thicker bristles and fewer bristles to reduce breaking.  Also thickened the thin portion of the handle too.  

Original Info:

Print at a 45 deg angle with PETG so the bristles are strong but flexible.  PLA also works but has less flexible bristles.  No support required.  Use a heat gun to melt away stringing between bristles.  Some filament in your hair is normal with first use.  

Here's a short video about it: