Originally Posted by Pilbara
A good source for all you budding HDPE (HIgh Density PolyEthylene) nav tower constructors is Bread Cutting Boards, yep thats right the ones you can buy in the supermarket for chopping meat and veges or cutting bread on. Come in a range of colours and thickness and easy to work with. They will usually have a 'HDPE' symbol somewhere on them. It is a lot easier than trying to find and source through an industrial plastics supplier if you are not that way inclined.
Off to Aldi to get some boards!!!!!