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Flag of Bytom Poland - Color Changing Mug 11oz

Flag of Bytom Poland - Color Changing Mug 11oz

100 in stock

Regular price $17.99 USD
Regular price Sale price $17.99 USD
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Flag of Bytom - Color Changing Mug Design

This design showcases the official municipal flag of Bytom, Poland, rendered as a structured vexillological graphic that honors the city's regional identity.

Visual Elements & Composition

The composition relies on a flat, direct vector style that emphasizes the flag’s bold color palette. A dominant, vibrant yellow serves as the primary visual anchor, punctuated by striking bands of blue, black, and white. Within the geometric arrangement, the artwork incorporates traditional heraldic symbols, including a shield featuring an eagle and a miner with a pickaxe. The layout is clean and symmetrical, prioritizing the formal arrangement of the municipal emblem to ensure the civic imagery remains sharp and legible.

Meaning & Symbolism

This artwork serves as a testament to the local heritage and administrative history of Bytom. By utilizing classic heraldic motifs, the design reflects the industrial and cultural legacy of the municipality. The inclusion of the miner with a pickaxe acknowledges the historic importance of the region’s extractive industries, while the eagle represents the broader Polish connection. Together, these elements transform the mug into a vessel for municipal pride, acting as a historical badge that celebrates the civic status and deep-rooted traditions of the city.

On the Color Changing Mug

The heat-reactive surface adds a layer of mystery to the civic display; the design remains veiled behind a dark, glossy exterior while the mug is cold, requiring a hot pour to awaken the flag’s vivid yellow and blue tones. As you cradle the mug and the heat takes hold, the city’s emblem gradually emerges from the shadows, making the act of your morning coffee a deliberate, slow-motion unveiling of Bytom’s heraldic history.

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Color-changing ceramic mugs with a glossy finish, black exterior, and white interior. Available in one size: 11 oz (≈330 ml). Heat-reactive coating reveals your custom design when filled with hot liquid. BPA- and lead-free, with a comfortable C-handle.

This mug brings a playful twist to the daily coffee or tea ritual. At room temperature, it looks like a simple black mug with a glossy finish. But add a hot beverage, and your chosen design fades into view, showing vivid colors against the white interior.

The ceramic body is durable enough for repeated use, while the C-shaped handle balances comfort and grip. Printing uses sublimation techniques that fuse color into the heat-reactive surface for crisp results when the design appears.

  • Material: ceramic with glossy black exterior and white interior.
  • Size: one standard size, 11 oz (≈330 ml).
  • Finish: glossy glaze with heat-sensitive surface.
  • Printing: sublimation process produces crisp, vibrant colors.
  • Safety: BPA-free and lead-free, suitable for everyday drinks.
  • Effect: design is faintly visible when cold, fully revealed when hot.

Perfect as a novelty gift or a fun personal mug, the heat-reactive design makes coffee breaks more engaging. It works well for morning coffee, afternoon tea, or hot chocolate.

  1. Daily routine: fill with any hot beverage to reveal your chosen artwork.
  2. Gifting: the “magic” reveal makes it a memorable present for birthdays, holidays, or office exchanges.
  3. Office use: sparks conversation while still being practical for everyday drinks.

Note: for best results, avoid designs that rely heavily on deep black backgrounds, as they may blend with the mug’s surface when cold.

Unlike standard mugs, color-changing mugs require gentler care to preserve the heat-reactive coating. Hand-wash only — avoid the dishwasher and abrasive scrubbers, which can damage the finish and reduce the effect.

The mug is safe for short microwave use when heating liquids, but repeated high-heat cycles may shorten the lifespan of the coating. Always allow the mug to cool before washing.

Available in one classic size: 11 oz (approximately 330 ml). It’s large enough for most standard coffee makers and fits comfortably in most cabinets.

Size guide

All measurements are product dimensions in inches.

11 oz
Height (in) 3.78
Diameter (in) 3.23
Diameter w/ handle (in) 4.76

Note: measurements are approximate; slight variations may occur due to manufacturing tolerances.