like the punch card not the treasure box. perhaps once it's punched out they earn "constructive free time choice" Behavior punch card, for every good thing they do you punch a number out. When all twenty are punched out they go to the treasure box.
Punch Cards for Homework / Behavior Reinforcement / Reward Freebie! These cute little punch cards can be used to keep track of the homework activities your students turn in or as part of an individual behavior reinforcement plan.
Idea-Quiet Critters - when you decide it's important for students to be quiet, pass out the quiet critters. Take them away from students who talk. At the end of the activity anyone who still has a quiet critter gets a prize, point, whatever you use.