Textured slab pottery

This video is part of the sharing art project of Northeastern Educational Television of Ohio. Intended for grades 5-10, this video starts with an introduction to pottery and ends with a class making their own work. The middle section follows George Sacco as he creates a giant decorative bowls using a slab pottery technique. He uses breakfast cereal to texture the slabs before fitting them over a large form. The unfinished seams between the slabs creates more textures, as does the rough edge of the slab after rolling. Each bowl is individually fired at low temperatures around 800 - 900 degrees in a simple outdoor brick enclosure with sawdust and straw.

Chip carving basic cut

Marty Leenhouts shows how to make simple three corner designs with a chip carving knife.

This is done in wood, but I wonder if potters or polymer clay artists ever use this technique?