3-Way Mouth props
This is the tool of choice for lingual-mandibular differentiation and stabilization, and can be oriented as needed for each client.  3WMP are used to stabilize the mandible while training the tongue to make various placements and excursions. They are sturdy, versatile and do not splinter.  Small wooden picks can be inserted into the 3WMP's for therapist or parental control. 3-Way Mouth Props have also demonstrated to be a useful tool to train singers to open their mouths wide during stabilization exercises.