Rubina of Gemina Arts and Crafts shows us how she makes her own clay shape cutters. Rubina says:
"When we work with cold porcelain, the essential tools and cutters are always needed. But sometimes we are unable to get accurate cutter according to the project. I have faced this situation many times then got idea to make homemade cutters....first we need Aluminium sheet or tin sheet, scissor, pen, margin scale (ruler), steel bond (glue) and... most important is the wooden block...(with) nails will help to get shape and curves of cutter."
Homemade Cold Porcelain Cutter Making