These are great standby puppets if you ever need an impromptu teaching assistant in class with you. Your teaching assistant (your hand) models the language for the students. Use make up sticks (barritas de maquillaje) which have been dermatologically tested. The ones I use as called ‘Alpino fiesta’ and are relatively cheap and easy to find.
Students will be happy to draw on their own hands to make people, add feathers and bit of paper and string for the hair, or a headscarf to turn the character into an old lady. Structure the class so that students know what they’re supposed to be saying otherwise they’ll revert back to their native language.