How to build a creeper launcher (only creative mode so creepers won’t blow you up)

How to build a creeper launcher(only creative mode so creepers won’t blow you up)

Step 1. Put a block up to 10 blocks high.

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Step 2. Put 3x3x3 blocks to build it.

Step 3. Get rid of 7 blocks that holds it up.

Step 4. Get a creeper spawning egg and spawn as many as you want.

Step 5. Get ride of 2-3 blocks an watch them fly in the air