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The Kid Should See This

Paul Grundbacher’s wooden marble machines

We love Rube Goldberg machines, marble roller coasters, and all kinds of wooden inventions that are fun to watch or are lovely to listen to

marble machine

These seven amazing marble machines by Paul Grundbacher fit perfectly into those categories. Here’s another favorite: 

You can watch all seven machines (and find links to videos of the machines that inspired them) here on

via Colossal.

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