The “Null Bond” certificate yielding 0%

{
  "input": {
    "prompt": " Studio photo of an official-looking bond certificate titled “NULL BOND” with ornate border and a large “0%” prominently printed. The certificate includes a seal-like emblem that is generic (not the real UK crest). A hand holds it up against a neutral background; the paper is high-quality, ironically lavish for something that offers nothing."
  }
}