I had a commercial brush kind of like this once.
The base is thin, so it is flexible.
It is good for short haired animals, especially if they are shedding.
Mentioned in the blog, long ago:
http://www.makerbot.com/blog/2011/06/01/pet-brush-for-dog-or-cat-by-miserybot
Dog_Brush_0v0.scad | 1.5KB | |
Dog_Brush_0v0.stl | 17.8MB |