Several times I get a request to make a helmet-shaped Optimus Prime Age of Extinction that can be worn. My friend Rauf Raphanus once edit the template of Optimus Prime head paper craft to become larger. The helmet was brought with us when we were both invited to be guest speakers at a morning show on NET TV. In the photo below shows the helmet worn by one of the hosts of the event, Shahnaz Soehartono. We recommend using thick paper up to 200 grams. Still a week to go before Halloween, this template may be useful to you.