K'nex Ball Run Christmas Tree.
I usually build a ball run for Christmas this year I decided to build one that looked like a Christmas tree. It is 4ft 3in tall and has 9 k'nex men on it. The star is 8 pointed and is made by making a crown out of the pieces and folding the two opposite points together.
The ball does fall of and get stuck on its way down but is is because the turns. I hope you like it and can copy it from the pictures if you can't or have problems with leave a comment below.