For making or other art craft, you can add various crafting materials, such as dried flower, sequins, pearlescent color epoxy resins, food-grade silicone. Safe, good durability. Suitable for make gypsum craft, home decorations; festival decorations, birthday Chrismas This star shaped silicone molds, for crafting home decorations. Just pour the epoxy resins or clay for cold process. Oven, refrigerator, freezers safe.