Starbound/assets/devel/items/active/grapplinghooks/slimehandgrapple/slimehandgrapple.animation

{
  "animatedParts" : {
    "parts" : {
      "rope" : {
        "properties" : {
          "centered" : false,
          "image" : "slimehandgrapple.png",
          "offset" : [-0.6, -0.5]
        }
      }
    }
  }
}