As of the update on 13 May 2014, the whole costume and Fed Bills system has changed. The templates available previously in the Fed Bills store are no longer available. The remodeling system is no longer available. The looks are still there, but there is no way to pass them along to new armor. You are stuck with what you have. See previous post.
There are some really strange items in the Fed Bills store called things like “Design: 24-Karat Robe” which is described as “Craft a permanent 24-Karat ensemble”. This is a crafting recipe that combines Robe, Sleeves and Shoes to create a “Costume” that will fit in the costume slot.