I remember I joined my sisters world (she was just a toddler and couldn't use mods) and there were HUMONGOUS VERSIONS of every hostile mob (weren't burning) and babies (also not burning)
Even if the item is on your head inventory slot, the item won't render on your player model or skin. So while the item still exists and is removable in your inventory armor slot, it will not appear visible to you are anyone else.
