Why might an Egyptian tie a cone filled with perfumed animal fat over their wig?

An Egyptian might tie a cone filled with perfumed animal fat over their wig to enhance their personal fragrance, as well as to signify social status and wealth. The melting fat would release pleasant scents in the heat, providing a way to stay fresh in the hot climate. Additionally, the use of such cones could also serve a practical purpose by helping to keep the wig in place and maintain its style.