Create sparkling “Diamond Swagâ€? effects with ease and speed using this silicone brooch mold, a new addition to the Marina Sousa Line. It is quite common to see swag effects that resemble fabric. Swag designs reproduced with faceted gems is something new, different and stunning. Made with the highest quality, food grade silicone to produce an extremely durable silicone mold that is tear resistant and can withstand temperatures to 400° F.