To make a stuffed animal weighted, you have several options depending on your preference and desired effect. One common method is to use small pouches or bags filled with either poly pellets, glass beads, or a similar weighted material. These pouches are then distributed evenly throughout the body of the stuffed animal to create an overall sense of weightiness and stability. Another option is to sew small weights directly into specific areas of the stuffed animal to achieve a more targeted distribution of weight. This might involve inserting metal washers or other heavy objects securely into designated pockets or compartments.