Mob Heads

Almost every mob can drop its own head when killed. Hang them on walls, build statues, theme a trophy room, or just collect the full set.
Getting mob heads
Kill a mob and its head has a chance to drop.
Using a Looting sword improves your odds, so a Looting III blade is the way to go if you are hunting for a specific head.
Some rarer mobs have lower drop rates — persistence pays off.
The head collection
There is a collection to complete as you gather heads, with advancements that tick off as you find each one. Check your advancements screen to see which heads you are still missing — it doubles as a checklist for completionists.
Mob heads make brilliant detailing: mob-themed farms, hunter's lodges, or a wall of every head you have collected.