When you start working with Kaiser Lee Board you might want to consider the "Mold Block System". It is the most versatile form of mold making. The blogs can be used to make:

Dishes,  Pattern bars, Bud Vases,Card Holder Casting molds, Jewelry Stands and many more.  

When you set them up on a piece of KL-board as a kiln shelf  you do not need to pin them down. The glass will not move them.

We offer two kits which include extensive information and instructions.