Dumb thing: A hearing aid. I always take poor hearing (cause it doesn’t matter that much for my playstyle) but I’d like some ability to recover from it for alarms or even recognizing noises which I myself have made, barring CBMs or mutations. Tier 1: Ear horn, maybe wield it to hear better. 2: Ear horn hat: very encumbering, but let’s you not need hands. 3: Hearing aid: lowish power consumption or rechargeable, low encumbrance, only for hard hearing and doesn’t enhance. Tier 4: Faster draining hearing enhancer, CBM, and mutations. Tier 5: things which provide enhancement and protection. Maybe you’d need multiple stacks for hard hearing to become enhanced, but only one item for normal hearing to enhance.
Edit: another thing: a place-able thing to cook with coals! Charcoal cookers only can have 50 charges. Maybe rename it to a “Portable Grill” and add a rock structure (rocks + frame) or grill (tank, metal, etc, must be placed) so I can place an object and load it with charcoal. As far as I know there is no option to just cook with coals easily. For ‘realism’ maybe they’d need a sack or can (for storing and then prepping coals).