That type of thing would cool, but I don't think it's a good idea to get into religions too much... They've been a lasting source of feuds for centuries, and the slightest things can offend one religion. It's a game. I think you can go into it a little, but not too far to prevent offending anyone.

What about a hat hat to get into a hat shop? Or maybe event ones. A person is giving out animal hats in Graal City, and you need one to get into the petting zoo tent set up near the Orphanage... Things like that.