Lego Trebuchet

It's fun to make,
it's fun to shoot,

and not so much fun to kill someboddy!





(If you like you can replace some of the parts.)

Step 1: The Base

It's easy to make

Step 2: The Counterweight & Hinge

Step 3: The Arm

Step 4: The Sling

Step 5: The Projectile

It's just two round blocks.