Very good step-by-step to make #Papercrete. A mix of about 3 parts paper pulp, 2 parts Portland cement and 1 part perlite. Lighter than hyperturfa and perfect newspaper recycling. Should also be good to make #raised beds and #retaining walls.
Fill nylon stocking with concrete for the base. Create gills underneath the cap with thin sheets of metal. Sculpt a mold for the cap, and press it into WET sand lined with a thin sheet of plastic, and slowly fill with concrete. Add realism by removing small wedges of concrete along the edge of the cap. Cap mold: A circle of cloth sheeting could be draped over a bowl/balloon, and brushed with concrete. The wavy edges could be created with rolled up newspaper under the edge of the cloth.
How To Make Papercrete: Papercrete is a cement with fibers of some kind in it. These fibers can be just about anything, from paper and cotton to hemp, jute, flax, wool ect. These fibers add strength to the cement, just as glass fibers add strength to fibreglass. In the case of papercrete, these fibers can actually make up the bulk of the mix, resulting in a product that is both lightweight and strong.