I can't take credit for Bongwater Park, saw it on this forum in reference to a purist asshole's opinion. And I always thought a great name for a satirical black metal act would be Mourning Wood.
This is rather old, but I tend to get a nice little laugh out of it with my friends (who happen to be Opeth fans as well): My arse, your face. They want to be a big rock band and this is an implicit message of their to-be stardom for sure.
I've got another one: An album of unfinished demos available only by shoplifting. It's called My Arms Your Purse. And if you've ever threatened to strangle a member of Limp Bizkit, it's called My Arms Around Durst. And if Opeth ever collaborated with Radiohead, it would be called Orchid A.