Personalized Teacher Key Chain Personalized Teacher Gifts are perfect little gifts that show how much you appreciate the work your child's teacher is doing. Your child's teacher is going to love this uniquely Personalized Teacher Key Chain. Our Personalized Teacher Key Chain is the perfect gift for teacher. Our Personalized Key Chain measures 2 1/4" x 2 1/4" and is a ?" thick and includes key ring. Includes FREE Personalization! Personalize your Change The World Personalized Teacher Key Chain with any name.