Minecraft Zombie-Chicken Jockey
go into a world where you can type commands and put /summon Zombie ~ ~ ~ {IsBaby:1,Riding:{id:Chicken,IsChickenJockey:1}} in the text box. trust me. You can experiment with this by replacing "Zombie" with another mob title, but keep in mind the mob's title should have the first letter in caps like "Cow", "Pig", "Enderman", "Sheep", etc. and also replacing both instances of "Chicken" with a different mob name as well. An example of these changes could be /summon Enderman ~ ~ ~ {IsBaby:1,Riding:{id:Cow,IsCowJockey:1}}
Enjoy!









