Prototype phone designed for drumstick users (“thumb-only mode”)

{
  "input": {
    "prompt": " Product-style photo/illustration of a chunky late-90s Nokia handset prototype with exaggerated usability features: oversized keypad, a labeled “THUMB MODE” toggle or slider, and a rubberized wipeable coating. Show wear: smudges, grease sheen, tiny crumbs in crevices to sell the premise. Neutral studio background like an internal R&D catalog shot."
  }
}