Olga Krawczyk
Olga Krawczyk voted up Charles Davis' answer

There actually already is, the Unitarian Universalist churches are open to all beliefs, and traditions, even secular.

Olga Krawczyk
Olga Krawczyk voted up Gator Blu's answer

Personally, I just go out in nature and do that. Why should anyone need to go into a man-made building? I think taking in the wonder of God's creations is a much better way. But to each their own.