The Bookseller is currently featuring a poll for the Diagram Prize '09 (which, according to the site, is for the "Oddest Book Title of the Year"). Scroll down a ways and you'll see a list of six titles for which you can vote:
The Changing World of Inflammatory Bowel Disease
Collectible Spoons of the 3rd ReichCrocheting Adventures with Hyperbolic PlanesGoverning Lethal Behavior in Autonomous RobotsWhat Kind of Bean is this Chihuahua?Afterthoughts of a Worm Hunter
I kind of think this is a pointless prize--who cares about which book has the weirdest title? That won't motivate me to read it. Still, it's interesting to see how wide the gamut for titles runs, and it's also interesting to see that my favorite of the titles is currently tied for first place.