All Blender physics

Blender Development Fund
Asset Library
Blender Development Fund
Asset Library
Simulate Real-World Physics in Blender (5.2 LTS)
$39.99

CG Cookie in Training

ProxyBody
$12.99 Dev Fund Contributor

PlugIn3D in Addons

Marble Machine 005
$28 Dev Fund Contributor

Alan Luk in Models

Stream Lines V1 - Aerodynamics
$25

KennyPhases in Modifier Setups

Soft Body Painter
$6$4.20

Blender Procedural in Addons