Crazy DaVinci tie-in books
Seriously, if you have a crackpot grail theory, now is the time to write it up and get an agent! A couple more years and your window of opporunity will have closed -- it'll be as hard to get a grail book published as it is to get a low-carb diet book published now (unless you're the South Beach guy - he's still doing okay).
So here are two doozies I saw in Chapters the other day. I mean, crazy, man (I'm providing links so you can check the craziness):
Second Messiah: Templars, the Turin Shroud and the Great Secret of Freemasonry
Realm of the Ring Lords: The Myth and Magic of the Grail Quest
On that second one: Yes, that's right, he's dragging Tolkien into all of this!!!
C'mon, folks, don't miss your turn on the bandwagon! (or the gravy train, as it were)