Forms for concrete

This post should precede the previous.

Here are pictures of the forms I made for the concrete. I am using at the suggestion of one of my collegues Patrick Kelly the use of sand as a molding agent. This is an ancient and flexible solution for best results on one of a kind forms. A replicable form would be better served by more stable mold agents typically used in molding production.
Using the sand was quick and easy, wetting it allowed me to create the shape of the surface I wanted, particularly the transition between the stonework and the concrete cap.
Depending on desired finish you can treat surfaces accordingly.