Mooshrooms can be used for Mushroom Stew and Milk if the Player has a Bowl and a Bucket respectively. If the Player has Shears, Mooshrooms can be farmed for Mushrooms. They can also be farmed for Beef and Leather.
Horses can be kept for transportation, and if farmed they drop Leather.
Pit Method – In the Pit Method, the Player must dig a 3 block deep hole with a Ladder to get outside, and lure Mobs inside using the appropriate food. The Mobs can be bred and farmed continuously. This method can be automated using Pistons and/or Dispensers for automated farming.
Pen Method – In the Pen Method, the Player must surround a relatively large area with Fences and a Fence Gate. Then, he/she must lure Mobs inside and farm them as needed.
Animal Farming can provide a constant source of items, provided that the Player doesn't kill the animal, or constantly Breeds them.