Nylon? I would think this would be a ‘print the moulds we use to pour in silicone’ situation, if we’re going for usability. https://formlabs.com/blog/casting-silicone-guide/ On an engineering note I’m also sure I’ve seen this exact thing before, but I wonder what would improve it. Self-heating? DIY solution could be a hidden pocket for reusable handwarmers lol
There was nothing factual about bringing the character simplicity into this because you made it sound like the reason they failed to find an objective was because they weren’t reading and enjoying the story, when what they explained perfectly well was that they picked one dialogue option, not realising it was going to be mutually exclusive with the other because both options just looked like informational inquiries, and the other option with relevant info was gone forever. Simple characters has nothing to do with that, and made it look VERY much like you were saying they weren’t up to the task of enjoying a game with interesting ones.