This isn't the only seller who has done this, but it is frustrating!

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=310215451705

Title of auction is "Two Towers 50th J.R.R. TOLKIEN & AUTOGRAPHED 2 BOOK LOT"

In the description, you see that they are selling a very common paperback from Tolkien (and they cannot even seem to find a picture of the edition that they have), and then they attach that to signed self-published books written themselves.

At least they have the courtesy to include the first five chapters in the auction, so I know just how much I want to avoid their book(s) without having to spend any money.