Prefab cutters are sold in a menagerie of shapes and sizes, but when I want a cutter in a certain size and shape, I make my own. Here’s how to make a custom cutter:
1. Draw your shape on paper, and cut out the shape to make a template.
2. Condition scrap polymer clay, and roll it into a slab about 5⁄16 in. (8 mm) thick.
3. Cut the clay slab into a shape large enough to accommodate your template plus about a 1⁄4-in. (6.5 mm) border.
4. Use metal shears to cut 30-gauge (0.26 mm) brass sheet into a strip about 3⁄8 in. (9.5 mm) wide and long enough to match the contour of your template.
5. Bend the strip to match your template. Use your fingers, or chainnose or roundnose pliers, depending on your template shape. The ends of the strip should meet flush with no gaps.
6. Use a clear, hard plastic sheet to press the shaped strip at least halfway into the clay slab, making sure to keep the strip edge level.
7. Bake the assembly according to the manufacturer’s instructions, and allow it to cool completely.
NOTE: If the strip is loose after baking, use cyanoacrylate glue to secure it in the clay slab.
Use your handmade custom cutter for polymer clay or metal clay projects.