I'm now officially multidenominational - I've just been accepted as a minister of the Universal Life Church. Not that it was difficult; anyone can be accepted. It doesn't matter what your religion is. That's the point.
However, I've done it for a good reason: the ULC have the same basic standards as Pastafarianism - they just don't have the pirate and pasta goodness - but they have no problems with the pirate and pasta goodness! Part of a minister's duty (in most religions) is to absolve sins. Now, Pastafarians have no concept of "original sin" or "hell", but the ULC understands other people do, so ULCism now "upgrades" me to be able to absolve original sin, whilst keeping my concept of no hell.