Tandy has a cool little video about doing this with exotic skins. If I remember correctly they did it the other way around as you did. They had a belt laying flat, traced the edges of the design that would be covered in snake skin (HoH in your case), used the swivel knife around that tracing, beveled the inside of the design, and then contact cemented the sking inside that design. I don't know if that is what you are going for or not, but it's worth a try. I am also sure it will be a pain to do with the hair, but hey it has to be able to be done some how lol. Your pics look pretty darn good too! Stitching looks really good!