Toy Story Wafer Cupcake Toppers 16 Pack Edible Images Simply place the topper into soft icing or buttercream. Please note: This product may curl if not stored in a cool dry atmosphere. These beautiful products are made of wafer paper (dried potato starch & vegetable oil). If you wet the product too much it is likely to disintegrate. Storage of Wafer Products We are sure you will be using this product just as soon as you purchase it, but if you do want to keep it for some time please keep it in its original unopened packaging at a temperature below 25C. Do not store the product in the open air or near any sources of moisture or heat. This is a product manufactured from natural food ingredients and will keep best if stored at a relative humidity between 60-75%.