Special Mob Specific Items

 The turtle in MInecraft is very unique in its contribution in the game, in that when its offspring grow to an adult, they drop a scute, and using scutes you can craft a Turtle Master's Helmet. What I think should be added into Minecraft is more Special Mob Specific Items that can give an advantage in certain situations. For example, what if mountain goats, when they grow, drop some sort of goat hoove thing. This could be used to craft Goat boots, that give you speed, enough jump boost to jump two blocks, and extra knockback when attacking another mob or player. This could allow the player to traverse mountains more easily, like the turtle masters helmet in the ocean, but would be hard to obtain because goats cannot be kept in fences and don't like to be moved, but to stay high up in the mountains. Another example includes the wardens. When a player has killed enough wardens, the warden will drop horn weaves. These horn weaves  and wool can be used to obtain a warden's chestplate by using the wool and horn weaves in a loom. This will allow the player to explore in deep caves without disturbing the warden by muffling vibrations with the warden's chestplate. These examples are to show the different ways that more Special Mob Specific items can be added to the game, and not to every mob, but to add more to these special mobs.