Free scrap

I went to the guy who did my waterjet cutting for the spinning wheel and dug through his scrap pile and got a whole lot of stuff. This picture is the plastic/perspex off cuts I got with some 18mm ply.

The second picture is a sheet of glass from a reception window in a hotel (I think). I got this for the roof of the hen house.

And the third picture is a bundle of ply wood which we used for the hen house and taking the chimney down. It isn't very good ply but they are 101cm x 122cm and free!