I used my angle grinder to carve four small semi-circles for the posts under the princess' feet to pass through.
The wooden under-structure that the princess was standing on needed to be cut smaller on two sides to fit the slate. This was scary. Supporting the princess on a table I skimmed a bit of wood off using a skill saw, all the while hoping that the vibrations wouldn't create fine cracks in the Winterstone.
Glue two pieces of slate onto the sides of wood base, clamp them and wait for it to dry. Glue two more side pieces, clamp and wait. Then the final two pieces were glued on top.
The final step was sealing the Winterstone and slate.
The scale model of the princess now stands on a table in our front hall. With so many other things on my plate right now (kitchen being renovating and my daughter, Sondra's wedding coming up) I decided to wait a month before starting on the life size princess for the Guelph Public Library.