Those who've read this blog for a while know I'm a big fan of stealing marketing ideas from other industries and applying them to summer camp marketing. I got the coupon/candy bar idea when I took my car in for service two weeks ago. When the mechanic finished fixing my car, he gave me a Hershey bar with a coupon attached good for $5 off my next service. That's a pretty sweet marketing strategy to encourage me to bring my car back to him next time it needs work, rather than take it to another mechanic.
I can think of at least a dozen ways to use this idea at my camp. I know you can, too. Give it a try. Your campers and parents will love it!