Puppet Jaw Mechanisms

I wanted to add moving jaw to the hare puppet as in the story the hare speaks and i thought that it would look better if the mouth move enabling the audience to see that it was the hare that was speaking. So i then started looking at designs so that i would have some idea of how to adapt it to my hare puppet, i intend to do something similar to the prototype that i created for the parade horse. I think that the prototype that i created for the horse worked really well as it was so simple and did the job that it was intended to do perfectly so i don't see any reason that i can't use the same or similar design just adapting it so that it will fit inside the hare.