Funcion para una Estrella

def pol():
    v1 = Toplevel(v0)
    v1.deiconify()
    poligono = Canvas(v1, width=210, height=210, bg="blue")
    poligono.pack(expand=YES, fill=BOTH)
    poligono.create_polygon(50, 50, 150, 50, 50, 110, 110, 25, 140, 100, fill="lightblue", outline="brown", width=6)
    b4 = Button(v1, text="Cerrar ", command=lambda: v1.destroy())
    b4.pack()

b9 = Button(v0, text="Poligono", command=lambda: pol())
b9.grid(row=1, column=8)