I made this from a plastic barrel using an electric paint stripper
It glides very easily and does not wear very fast, I made it for fallow.
Feel free to copy or improve, but please add photos of your improvements for us all to benefit from
My idea is limited due to it being unfoldable, but I have hidden a couple about the place and cant see anyone wanting to steal them
If they do its not such a loss, it only took a couple of hours to knock up