To celebrate reaching a million subscribers on YouTube, the internet’s favorite slingshot-building madman, Joerg Sprave, has engineered his largest creation to date: a massive elastic-powered weapon that turns bowling balls into flying projectiles.

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It’s capable of turning cinder blocks into pebbles, but you can also swap a bowling ball for a watermelon or a pumpkin and turn those gourds into a massively satisfying explosion of pulp.

[YouTube]