After deciding upon which kind of concrete pour I want to make I then make a form.
You can make a slab, piers, walls and footings and, do it on site, so it blends in with the scenery. It has glue in the cement and sticks to just about every thing you touch it with.
I use a plastic tub and spoon, which are disposable. I let the overage dry in the plastic bucket, Qt size, and it will break out very easily and not damage the bucket for many uses.