Invite children to share their own stories of favorite objects (stuffed animals, blankets) and their experiences in losing and finding them. These tales might make a good class book, or a personal, homemade storybook.
This book ought to prompt good discussions of children's attachments to objects such as stuffed animals and blankets, as well as how to handle tantrums. This is a good time to explain the importance of children learning language; and that many times tantrums occur because children cannot make themselves understood.