recycled 16 oz water bottle christmas tree

I need an alternative tree for my home and we drink tons of water can any one tell me how to go about using water bottles to make a tree? Heres a link to a video with a tree they made I love this idea but I'm not good at coming up with plans for stuff like this.



Their design seems pretty straight forward from the pics. Start by constructing circles of bottles in consecutivley smaller sizes (string them on fishing line perhaps). Then stack them to attain a tree shape. Hope that is a good starting idea for you, and I hope the crummy image is helpful in explaining it.