Glittery glue dots - for magnets! It looks like those glass filler stones (or maybe dried resin or glue? hmmm), and glitter for the materials - No instructions, but it seems pretty simple going from the pictures.
In this picture, it is evident that shadows are not always what they seem. Shadows seem to distort the truth. In the novel, shadows are a prime example of how distorted truth and obscurity are symboli (Fotos Cool Ideas)