I think my favourite is 'How Green Were the Nazis?' edited by Franz-Josef Bruggemeier, Mark Cioc and Thomas Zeller, but all of the shortlisted titles are worth a mention:
'D. Di Mascio's Delicious Ice Cream: D. Di Mascio of Coventry: An Ice Cream Company of Repute, with an Interesting and Varied Fleet of Ice Cream Vans' by Roger De Boer, Harvey Francis Pitcher, and Alan Wilkinson.
'The Stray Shopping Carts of Eastern North America: A Guide to Field Identification' by Julian Montague.
'Tattooed Mountain Women and Spoon Boxes of Daghestan' by Robert Chenciner by Gabib Ismailov, Magomedkhan Magomedkhanov and Alex Binnie (actually, this might be my favourite; it's so difficult to choose).
'Proceedings of the Eighteenth International Seaweed Symposium' edited by Robert J Anderson, Juliet A Brodie, Edvar Onsoyen and Alan T Critchley.
'Better Never To Have Been: The Harm of Coming Into Existence' by David Benetar.
We'll have to wait until 13 April to find who is the blushing winner (last year's was won by 'The People Who Don't Know They're Dead: How They Attach Themselves to Unsuspecting Bystanders and What to Do About It' - actually, I know a few people like that).
All of which makes wonder what are the silliest-ever songtitles. My suggestion is 'You Never Get Too Big & You Sure Don't Get Too Heavy, That You Don't Have To Stop And Pay Some Dues Sometime' by the Sir Douglas Quintet.
So come on, wade in with your silly suggestions. Des, please note, you are restricted to 5.