Why not introducir un poco de Spanish in story time. My daughter did not want to hear stories in Spanish, but she was happy for a word or two to be in Spanish if she could understand from context, repetición and similarities to inglés.
Here is a puppet show I did for children under the age of 6. Puppets are great for conversación if you are teaching on your own, so why not pick up a sock, give him un nombre and a couple of eyes, and you are away!
Here is a script for a children’s show … feel free to add to it and do encourage los niños to join in with you. You can enjoy the story yourself by watching my tremendous video, but I do encourage you to have a go at collecting the props and performing it yourself. Go on … it’s fun!