Calvin Seibert constructs geometric ##al castle sculptures with tools . He only uses a hammer , a plastic placemat and a $ 1.50 plastic bag for the work . Too wet , and it 's hard to shape . Seibert shapes everything by hand , roughly measuring each piece .
Calvin Seibert constructs geometric ##al castle sculptures with tools . He only uses a hammer , a plastic placemat and a $ 1.50 plastic bag for the work . Seibert shapes everything by hand , roughly measuring each piece .