I took a Decoy Heart,glued a .38 case to the bottom, went down to the hardware store,purchased a realitivly stiff spring that fit that 38 case,put that spring on an arrow shaft,the decoy heart on top the spring, Wraped that contraption with the white of a bobcat fur,used 3 tails,2 for the ears and 1, for what else but the tail.Work real well.