Professional sculptor Calvin Seibert builds modernist sandcastles on Coney Island with just a plastic bucket and hand tools – shown in this massive gallery on Calvin’s Flickr. Calvin was interviewed by Little Atoms and says this about his craft:
I do make sketches throughout the year, but it is rare to have a completed castle actually resemble a sketch. A sandcastle for me is a kind of study or sketch in itself. I am pretty much making it up as I go along because it’s more fun not knowing. It would be real work if I tried to stick to a plan.