put it in a bookcase with other books, and file it under FICTION.

g

Hopefully its a smoking room....

..well don’t be surprised if my little sister still has some warning stickers left … “..the contents of this book is hazardous to your mental health.” I gave her a big roll!

What's your goal in doing so? Offhand, I cannot see a benefit. Some of your secular guests might not realize you're being ironic, and that could hurt your rating and any repeat business. If more devout believers realize it's ironic, they may feel mocked and that too could hurt your business. In your place, I'd avoid doing anything to make your guests feel uncomfortable or unwelcome.

Where the loo roll goes

Put it outside, on the windowsill.