This was a wedding present I made. I already put some shells, sea glass and other findings inside but the idea was rather that this would be a tiny box where they could collect some treasures they find on their way.
I covered an old candy box with polymer clay and painted it with acrylic paints (Reeves) as well as Inka Gold paints (Viva). Especially with the Inka Gold you have to carefully seal the surface because the paints are not water resistant. But they have a beautiful metallic shimmer!
And the backside :)