Did you already incorporated the GBC Funnels into your Great Ball Contraptions?
We would love to see them in action and eventually share them.
Get the GBC Funnels here: https://pv-productions.com/product/gbc-funnel/
See also our C Model Building Instructions & accessories: https://pv-productions.com/product-category/lego/
Build our models? Share the fun: https://pv-productions.com/upload/