Cleaving axes

My updated idea for cleaving would give players in survival the ability to get other players and mobs heads in survival. Some of these heads would be able to do certain things, such as if the player who killed an enderman stares at its head, it will give a redstone signal, and open its mouth. Ravager heads could do their roars which would do the same knockback roar after. This could create cool base entrances or traps. The heads of larger mobs or villagers and piglins would stay the same size, and keep their appendages. Guardians, fish, and mobs that don't have defined heads would drop their entire bodies. These bodies would be more like statues and be the same size as the now dead mob. When given a redstone signal they would animate, and glow squids would slowly glow on and off. There could even be a secret achievement for putting a salmon above a sign above a button on the crafting table. "Sammy The Singing Salmon", or "Boogie Bass", and the actual item that would animate and sing.