In this new series we want to test your knowledge on our GBCs and GBCs in general. If you know the answer, leave a comment down below.
Tip: See here all our Great Ball Contraptions made from an existing LEGO set.
The Guess the GBC #5 from last week was the Roulette LEGO GBC by BerthilvanBeek.
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It is amazing that you build something like this out of square LEGO bricks…
