I hope this was helpful. Let me know if you have any questions. Sometimes it takes some fiddling to get certain parts working. The new Godot 4.4 beta has a built-in SpringBoneSimulator3D node, which allows for new and exciting options for physics simulation, including jiggle physics. This can be used for hair, fabrics, plants, jello and other things. In the video I use a model from VRoid and then make adjustments with Blender, and then finally import to Godot to get the physics working.