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.
What a fun idea. Turn tea tins into fridge magnets! Or white board magnets. This just gave me a great idea.I have some vintage spice tins that are not displayed very well.I should just make them into magnets!