As one costs 40 euros and it basically just traps the loose hairs, well... why not print one?
A nice handle and two separate plates to reprint if, somehow, they gets broken and depending on the thickness of the coat. One can make them thicker if anything...

Prusa variation

No

No

0.2mm is more than fine

30% for the plate, 30% for the head of the handle and 10% for the grip (in Simplify 3D)

the parts are made so that M3x10 screws can be easily screwed in place without the need of nuts.