Spawning cages

Zombie cages that spawn zombies are great! Add an element of danger when exploring. I would like to see more Illager stuff, and make camps of them, to have danger spots in my world or make a pirate ship for instance with Illagers aboard. Having creative mode spawn cages avaliable would be great and you could craft them with 8 iron railings in a crate shape and either an ominous banner, zombie flesh, bone or spider eye depending on what you wanted. These could be used as defences against players in multiplayer or just to spice up a perilous jungle. I found an abbandoned villager that is screaming to be filled with zombies!