KEEP CHECKING BACK FOR UPDATES: I'M PUTTING ALL REVIEWS IN THIS POST BY JUST EDITING IT OVER AND OVER UNTIL I CHANGE MY MIND.
Island of the Sequined Love Nun by Christopher Moore
This one is good despite its lurid and gawdawful name. Really, a flawless dark farce that reads like an action movie written by Vonnegut in one of his more playful spells. Enjoy.
Bloodsucking Fiends by Christopher Moore
I've read a lot of Moore's books in the last few weeks because they're all pretty good... this one is the other one that I can recommend without reservations. It's fluffy, occasionally tests the willingness of your suspension of disbelief, and sometimes loses its credibility, but it's still a pretty darn good book. By no means as good as Island, but simultaneously not as bad as the non-starter Practical Demonkeeping.