Below is my attempt at recreating the soap in the briefcase shot in Fight Club. Right off the top I can tell you a few mistakes/errors that are present:

The labels on the soap are the same throughout (this is due to the availability of only one of the labels) The material on the bars of soap must be changed in order to better match those in the film The color is a little bit off.

As this is a WIP I have posted it in order get feedback in order to make it better. If you know of a tutorial/resource that would help me get the soap material right, please post in the comments.