Christian Finnegan, lover for hire and commentator extraordinaire, has written a brilliant post about "Rejected Titles for the next Harry Potter Novel." Here are my faves culled from that list and the comments:

Harry Potter and the Conspicuous Cold Sore

Harry Potter and the Order of Shrimp Lo Mein

Harry Potter and the Low Fixed Rate Morgage

Welcome Back Potter

Harry Potter and the Furious Five

Harry Potter and the Chamber of Commerce

Harry Potter and the $2 Whore