Physical models of the human vocal tract have been developed for many purposes, including education in acoustics and phonetics, speech and language pathology, and speech science/technology. To cover different application areas, variations are needed. When organizing the types of vocal-tract models developed for such a wide range, one of the major axes is static vs. dynamic aspects. In this study, we demonstrate two models that are the current extremities of the two directions of this axis. The first model is an ultimate static one in which the vocal-tract configuration is one vowel. This model is embedded in a dummy head so that it can be applied to produce exactly the same vowel repeatedly or for a very long duration with a realistic directional radiation pattern. The second model is a recently developed dynamic one with several blocks simulating articulatory movements. The cam mechanisms help to change the vocal-tract configurations in real time.