It is good for youth to realize there are other Christians who are involved in other churches. Divide youth into groups of 6-8. Have each group be scavengers in different parts of the town. (With adult supervision) Each group has to receive the following items from homes they visit. No more than one item can be obtained from a home.
Church Bulletin.
Christian Bookmark.
Daily devotional booklet.
Church Newsletter.
Bible Verse. (May be written out for them.)
Offering envelope.
Missionary newsletter.
A weekly lesson from a Sunday School Class.
Newspaper ad/article of a local church.
Other Christian stuff.
If you want to add some other items you may do so. Kids have fun and realize there is a large Christian community outside the walls of their church.