Our First Great Ball Contraption

Last winter Colin took Alistair to see a Lego show.  Alistair loves Lego so of course he loved seeing all the creative layouts and trains.  He and Colin also loved a great ball contraption someone had created.  Inspired, they watched videos on YouTube of great ball contraptions, getting ideas.  This weekend they finally created one of their own using pieces of Technic and Colin's old Lego train tracks.  They had a lot of fun building it.