Don't you love that warm, fuzzy feeling? The jar says: Do something kind and get a warm fuzzy. Put it in the jar. When the jar is full you get a class party! Can easily modify for home behaviors - positive reinforcement.
Cute for primary grades! Poster display for classroom expectations/community building. (If you want each student can have a clothespin with their name. When they display one of these, pin it to the corresponding expectation!