The Revised Plan

Thanks to a discovery by my Ma of a nice blue water barrel in the garden we now have a revised Waterslide Boxcar design;
I like how it will look like more like a waterslide and how I won't need to do any woodwork. I may need to get my ma a new water butt though. Also anyone know how to cut plastic?! I think chainsaw.

And yes Pip, I just said butt.