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WORLD RECORD! LEGO Great Ball Contraption @ Brickworld Chicago 2019 - YouTube
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Lego GBC module: Heart Chain - YouTube
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Great Ball Contraption
2022 in LEGO GBC: Mighty Modules and Laudable Loops - BrickNerd - All things LEGO and the LEGO fan community
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LEGO IDEAS - Lego GBC Rotating Cup Module
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LEGO MOC Sweep Stair Lego GBC Module by jjsherm2 | Rebrickable - Build with LEGO
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