Items Duplicate when Horses, Donkeys, Mules, and Llamas are killed

Saddles, carpet, horse armor, and items stored in chests on donkeys, mules, and llamas will duplicate on death. This includes enchanted weapons, however the chest does not duplicate.

To replicate this:

• tame horse, donkey, mule, and llama
• place the necessary items on the mobs
• watch your inventory carefully (I recommend to use the same saddle and chest)
• kill the mobs (you’ll be able to the extra items when they drop)
• check inventory to see if number of items increased