The design of this metallic, honeycomb-shaped coal briquette ornament draws inspiration from the classic form of traditional folk crafts—honeycomb coal briquettes—while seamlessly integrating modern industrial aesthetics and innovative design concepts. Retaining the cylindrical body and uniformly spaced, through‑holes at the top as the core structure, the piece eschews the dull, rough texture of conventional coal and instead employs a 3D‑printed material with a deep emerald metallic sheen, imbuing the aged object with a cool, hard‑edged industrial feel. The consistent, precisely aligned hole sizes not only faithfully replicate the functional aesthetic of the original design but also, through innovative material and color choices, transform this nostalgic symbol into a contemporary artistic expression—creating a striking visual interplay between retro charm and modern sophistication.