This product is a template of cards that can be cut out. The cards say "J'ai parle seulement en francais aujourd'hui!" (I spoke only French today!"
In my classroom, students are to speak only in French. If they do, they are rewarded with a card at the end of class. They put their names on the cards and put them into a container labeled with their class. Every three weeks, we draw three winners from the container, and they choose a prize from the prize box. Also, we count up all the cards and students receive a quiz grade based on the number of cards they received. I have found this method to be very effective.