Use 2 white cookies from kit. Ice top cookie smooth with green icing (smooth with finger dipped in cornstarch). Use white kit icing to sandwich cookies, placing cookie stick included in kit between cookies.
Use tip 3 and white icing to pipe whites of eyes and tip 1 with black icing to pipe pupils (smooth with finger dipped in cornstarch).
Use tip 3 with green icing and zigzag motion from eyes down to middle of face to create nose.
Use tip 1 and black icing to pipe eyebrows and mouth. Use tip 1 and white icing to pipe tooth and tip 3 and green icing to pipe cheeks.
Cut black shoestring licorice to various lengths and attach to top of head with black icing.