The Inventory Pets mod for 1.8 adds 32 new pets that reside in your pockets. When they are in your hotbar, they give special effects, drops, buffs, utilities, defenses, and weapons in exchange for care and feeding.
O = Outside Layer
F = Food
D = Diamond (usually)
G = Gold Ingot
Download the Inventory Pets Mod for 1.7.10:
Inventory Pets Mod for 1.8
Forge for 1.8
Locate your Minecraft.jar file.
Open Minecraft.jar using Winrar and delete the META-INF folder
If you haven’t already installed Forge, drag the files from the forge zip file into Minecraft.jar.
Run Minecraft once