A kit and method are presented for making a mobile injury protection device, such as a splint, for protecting an injured body part, such as a limb. The kit includes a formable object and a heating source. The heating source is used to selectively heat the formable object to an elevated temperature, molding the formable object into a required shape for the injury protection device and allowing the molded object to cool to room temperature and become hard again. The formable object may be molded on or around and be in contact with the desired body part. The heating source may include a selectively activated chemical composition, for example by adding water or air to it.
