Do a search on eBay for 'Fight Club Soap Wrappers'. You will find both designs (and a third apparently not used) that were apparently obtained from the prop maker that made them for the film... That's gotta be the most screen-accurate ones out there (that weren't actually used). Includes a couple of alternate business card designs too, he seems to have sold out of the screen-accurate business card.
I have a set on the way myself, haven't received them yet though...
I stumbled onto the website of Eric Rosenburg Design today. He designed many of the paper props for Fight Club including:
The Annotated Reader magazine with the article "I Am Jack's Medulla Oblongata"
various disease pamplets
business cards (Federated Motor Corp and Paper Street Soap Company)
Paper Street Soap Co. soap wrappers (4 designs)
Sovereign Airways logo and passenger safety card
Gratifico Coffee sign
Lou's Bar & Tavern neon sign
Platinum Video store logo
A small part of my Fight Club stuff, I packed a lot of it away for the sake of space but came across a few bits & bobs today thought Id post this snap here because they are mostly paper props.
Ive got a few sets of airline tickets I didn't even know I had, left over from a FC party ages ago
I just got a printing in today of a version of the business card that I did and I'm fairly happy with it. I used some of the resources in this thread, like the clear image of the center logo and Marla's signature to make it happen, so thanks! This is the first prop I've done so far that I've gotten from computer to actual item, so it's exciting I have a couple of other things like badges that I've done but haven't gotten around to printing/laminating etc. I know Marla didn't write her number on the back of the business card, but this was close enough for me. http://i.imgur.com/PNpm7.jpg