Canvas 1024x1024 RGBA PNG, fully transparent except the item.

Style: 1930s Cuphead rubber-hose cartoon matching the base exactly: bold black ~5px outlines, flat cel colour, one soft highlight, faint paper grain; NO glow, halo, sparkle dots or stray marks. Character faces front, centre x=510.

Draw 12 items WORN around the thin neck: each item's two upper ends meet the neck outlines at x=466 and x=558, y=735, and pass behind the neck there (back part not drawn); from there it drapes with visible weight and a small cast shadow onto the upper chest, within x=232..788, y=700..1024, lowest point/pendant around y=820-900. Nothing above y=700, nothing over the chin (662) or mug handle.

Items must be bold and readable at thumbnail size: chain links or beads at least 12-16px, cord at least 8px; hang as 3D objects swinging slightly, never flat along a collar edge like printed embroidery.

Range, each clearly different in shape, material and colour: chunky gold curb chain, silver ball chain with a sugar-cube pendant, red polka-dot bandana knotted at front, black bow tie, pearl strand, brass pocket-watch on chain, leather cord with a coffee-bean pendant, wooden bead necklace, striped sailor kerchief, candy-colored ribbon with a bell, heavy gold medallion chain with a star coin, flower lei of large bold red-and-yellow cartoon flowers (rare).

Materials from the item, never the base's cream ceramic.

Only the item: no clothing, skin or collar.

Files: artifacts/neck_01.png .. artifacts/neck_12.png, plus artifacts/neck.json: array of {"file","name","weight"}, weights sum to 100, rarer items (medallion, lei, pocket-watch) lower. Write artifacts/neck_01.png .. artifacts/neck_16.png and artifacts/neck.json: an array of {"file","name","weight"} with weights summing to 100, rarer lower.