Simple 0-1 parameters. Jiggle anything from soupy ropes to immovable rods. Verlet integration makes the system incredibly resilient to "exploding". Supports bone squash and stretch. Relativistic, ...

this is a jiggle bone animation add-on for blender, to enable jiggle physics first enable Jiggle scene in the scene settings and then enable Jiggle Bone on the bones ...