Buy the Class Rules! 6.5" x 10" Gummy Bear Reward Jar Set by B2C™ at Michaels. Get ready for the new school year by decorating your classroom with school themed décor and supplies. Get ready for the new school year by decorating your classroom with school themed décor and supplies. You can use this reward jar to give out kudos to your students and let them fill up the jar one by one until it is full of gummy bear tokens and they earn the class reward!