Press and smooth the surface as you attach them. No water, glue, or other adhesive is needed. Like magic, the polymer clay adheres to the surface and, with a little pressure, you can slightly enlarge the design by pressing it against the glass. Apply the discs in any design you like, filling in any tiny gaps with some of the extra clay. When the entire surface is covered, gently roll the glass against a smooth surface to help even and smooth the clay surface.
Polymer clays come in opaque and translucent colors.
All colors can be mixed to create your own private rainbow. There are even glittery metallic colors to make your colors sparkle. The sky is the limit with this versatile, non-toxic, colorful and easy to use material. The New York Times has named the Book Review's choices for the ten best-illustrated children's books of 1999.