This GraviTrax Christmas tree marble run actually works! Great to watch while opening your GraviTrax Advent Calendar. Click the …
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Very cool๐
Are you also watching my videos?
Your jumpers are working so perfectly ๐ฅณ We often have to put Scoops before them to really make them launch … Especially for full runs we rarely dare to take the risk of them ruining it all otherwise!
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