Calvin Seibert creates handmade sand castles. Except they're not really sand castles. Photo: Calvin Seibert
Seibert builds structures with swooping Zaha Hadid-esque shapes. Photo: Calvin Seibert
And blocky brutalist forms. Photo: Calvin Seibert
This is all with a simple toolkit of a 5 gallon bucket, plastic placemat for leveling and a little plastic tool for shaping the sharp edges. Photo: Calvin Seibert
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