Black’s Toys Iceberg Stacker. The Iceberg lime stacker has been designed to accompany the Glacier and Wave Play Scene. The three pieces of the design are white, light blue and pale turquoise to represent ice and snow. In Play the top layer makes a rest for seals and penguins or a slope to slide down. Three part stacker. FSC kiln dried bass wood. Handpainted with plant based, non toxic colour, and left slightly textured.