I had tried crafting the chest emblem design out of Sculpy but was just too difficult. It was not the right medium. I messaged
another costumer through myspace about what she uses for her accessories and she sculpts out of plaster and casts the latex from there. I could not find plaster at my closest hobby shop which I know I saw there previously; instead I picked up some blocks of wax and spent most of yesterday trying to work in that. Every time I thought I'd get a smooth surface, it would dry wavy and lumpy. It's still better than the Sculpy.