This hairbrush unity package is a ready-to-go hairbrush made for VRChat avatars that makes dynamic brush sounds based on contact and motion. The package includes a ready-to-install prefab, controllers, animations, and instructions on use and installation.
An install video tutorial link can be found in the 'Read Me' document within the package.

Notable features include:
-Brush sounds that are dynamic and driven by contact and movement.
-Contact size adjustment radial for better contact precision.
-A color change radial for the brush.
-Hand petting mode that hides the brush, but uses the same sound dynamics.
-Manual gesture override mode that activates sound using hand gestures instead of contacts, but is still movement driven.

[b]ASSET RATINGS
Parameter memory cost: 20 (12 w/o color change radial)
Mesh Renderers: 2
Mesh poly count: 4,583
Material slots: 2
Phys Bone Components: 2
Audio sources: 2
Expected SDK performance rating: Good

*This asset is not compatible with Quest avatars.
REQUIREMENTS FOR INSTALL
Avatar FX controller that does not use mixed Write Defaults. Either all on, or all off. This package comes with respective mergeable controllers for each workflow. I do not provide support for mixing Write Defaults as behavior is predictable.
Poiyomi Toon Shader (version 7.3.x).
VRLabs Avatar 3.0 Manager.
Lyuma's Avatar Emulator. (optional for testing in Unity)
Links for PoiyomiToonShader, Avatar Manager, and Avatar Emulator can be found in the description of the Youtube tutorial.