Apparatuses for forming oral protective devices and airway management devices (e.g., to discourage snoring) are described, as well as methods of using such apparatuses for making oral protective devices and airway management devices, and devices made according to such methods and with such apparatuses. The apparatuses can comprise arch-shaped elements with any of several features that allow ease of use, ease of customization to individual users, and implementation of airways desirable for applications such as airway management.