200 15mm Polystyrene Balls to Decorate | Styrofoam Shapes for Crafts Styrofoam ball shapes for adults and childrens crafts. These spheres can be painted, used with sequins & pins, decopatched and much more. By adding a hanging cap or string these would also look beautiful as ornaments or Christmas baubles. With a variety of sizes and packs to choose from the crafty possibilities are endless. Sizes include 15mm (20 & 200 packs), 20mm (20 & 200 packs), 30mm (10 & 100 packs),40mm (10 & 100 packs), 50 PLEASE NOTE - This item is not available for delivery to the highlands and islands, outside of the UK mainland or for Royal Mail Special Delivery, in view of the size and or weight.