Silicone Dinosaur Bones Chocolate Molds - Triceratops and T-Rex - Instructions Included Set of 2 dinosaurs, Triserotops and T-Rex silicone mold trays. Colors will vary. Made from food-safe, freezer-safe flexible synthetic rubber silicone. Ice cubes shaped like skeleton fossils. Use for ice cubes, chocolates, candies and more!. Educational and great for any occasion.