I ask them if they wood like to stack wood for the afternoon in exchange for a home cooked meal on the condition we talk about everything BUT religion. They usually jump at the chance. I have wood stacked 3+ years ahead, and I am told I'm a great cook. They're generally nice kids away from home for a loooong time, and I would want strangers to be kind to my children if the situation were reversed. It also doesn't hurt to show them that non-churchy people can be kind and tolerant too.
