Use Case Lapidary: Prompt Tumbler

Create one polished public-gallery concept image titled "Use Case Lapidary: Prompt Tumbler".

Output format: one horizontal 5:3 cutaway macro product photograph of a fictional tabletop stone-polishing tumbler, photographed as a single object on a matte graphite bench. It is not a grid, not a contact sheet, not a research board, not a tray organ, not a chamber, not a snowglobe, not a water basin, not a crate, not a cabinet, not a loom, not a proof press, not a patchbay, not a stage, not a fossil drawer, not a toy latch.

Scene: a clear rounded tumbler barrel with a removable amber rubber liner, five invented pebble samples, felt grit sachets, a tiny sieve drawer, a curved timing rail, a polish cloth tab, and one inspection loupe. The invented subject marker is a small turquoise pebble shaped like a crescent seed with two ivory dots and one graphite notch, visible before tumbling, in the sieve drawer, on the polish cloth, and inside the final loupe window. No people, no hands, no logos, no real mineral brands, no real industrial procedure.

Use case mechanism: GPT Image 2 prompt control becomes harmless iterative polishing. Short readable labels on physical tags: Core Stone, Context Grit, Memory Pebble, Edit Barrel, Quiet Sieve, Caption Cloth, Aspect Rail, Finish Wax, Loupe Proof. Show how the same crescent-seed marker survives different grit bags, a barrel edit window, a sieve that removes extra chips, a cloth tab with short text, a rail that changes framing, and the final loupe proof.

Visual language: premium tactile studio photography, clear acrylic barrel, amber liner, graphite bench, turquoise crescent seed, ivory dots, soft felt sachets, brass screws, crisp tiny labels, realistic materials, shallow depth of field, refined and playful. Entire concept is fictional, original, unbranded, harmless, rights-safe, non-political, non-adult, and non-graphic. Avoid public figures, real brands, celebrity likenesses, copyrighted characters, dangerous instructions, weapons, gore, and living-artist style imitation.