Bluetooth will follow... We used inner bone of Kudu horn to make this 'experimental brush' Some resin, some shaping by hand and violla, you have a brush with a handle that looks like a tooth from some creature that had some Wildebeest for lunch with some of its blood left on this fang.
Like many municipal workers this brush likes lying about most of the time, you may want to add a shovel and it might lean on it, but I won't count on it. It is fitted with a 20 mm Boar knot, weighs 82 grams and is 140 mm tall.
The tapered end sits surprisingly comfy in hand, and your pinky finger may finally feel it has a purpose!