You've seen the normal chicken bombs, but have you seen 3?
Warning: chickens will die, so if you don't want that then just do a normal one, without TNT

Step 1: Items

• 1 TNT
• 1 chicken spawner
• 1 solid block that isn't TNT, sand, or gravel
• creative mode

Step 2: The Platform

• just build a giant pillar and build 3 blocks out on both sides
•destroy the other blocks so it looks like the second pic
•add TNT in that one spot

Step 3: Chickens

How to make a chicken bomb:
• spawn one chicken on the block
• Spawn the rest in on the edge of the block, but on the same side as where you spawned it

Do this for each platform

Step 4: Death Ring of Chickens

•light up the TNT
•watch them all separate and some die

Optional:
•do more of these chicken bombs
•do the simple ones
•pour lava on them
•light them on fire
•make a pit where they fall into fire/lava/cacti
•make them follow you around by putting a seed in your hand (NO ONE CAN STOP YOU NOW WITH YOU CHICKEN ARMY MUHAHAHAHAHAHAHA... O.O)
•Do whatever you want