Here are some tutorials that I have for teapot cakes.
http://www.make-fabulous-cakes.com/teapot-cake.html
http://cake-decorating.wonderhowto.com/how-to/make-teapot-cake-317306/
http://thecakegirls.com/projects/tea-pot-cake-how-to.html
This one is for a gumpaste tea cup: http://sugarteachers.blogspot.com/search/label/teacup%20tutorial
Hope it helps.
