Key Fragments

All Key Fragment recipes have a 2 hour cooldown, but the cooldown is not shared. For example, this means you could craft a Key Fragment using Ghast bits and then immediately craft another Key Fragment using Enderman bits, but you would not be able to craft a Key Fragment using Ghast bits again for 2 hours.

Spawner Key Fragments are an ingredient to craft Spawner Keys.

As shown by each recipe, you can craft a Key Fragment by using stacks of any type of mob bits. These cannot be mix-and-matched! They must all be the same type of bit for each one.

(universal recipe)