Bob -- We call ours The Meeting House. We are a congregation of very lapsed American Baptists to borrow from Stweart. We also don't have great acoustics since our Meeting House was once a private home. We do have a few who sing loudly, though. The only things approaching religious paraphernalia are a few banners -- one is a rainbow making THAT statement.
No one ever passes a plate, hardly anyone ever asks for money unless it's to say, "I think it's your turn to buy dinner," and you would be welcome to sing there.
There are churches -- I can think of a few -- I would walk across the street to avoid and there were times I wouldn't have visited the White House because of the occupants.
Martie