Here's more detail of how I built my double magnet columns:
And a test-fit of all 22 columns on my steel work table (I'm still working on the base texture design...) - also the edge detail is missing from the courtyard, along with it's back:
Other than the rude awakening learning that foamboard, though strong, isn't always flat shows in this shot, I really like the ceiling when it's underlit.
