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.
( I cover with seran wrap so it does not stick) Hollow quilled egg made on polystyrene form elastic band around the widest part of the egg to help you to mark the central position, you know when to stop quilling! Spray the finished egg with two or three