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USCG Katmai Bay WTGB 101 (U.S. Coast Guard) Color Changing Coffee Mug

USCG Katmai Bay WTGB 101 (U.S. Coast Guard) Color Changing Coffee Mug

100 in stock

Regular price $17.99 USD
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USCG Katmai Bay WTGB 101 Color Changing Coffee Mug Design

This captivating mug design celebrates the USCGC Katmai Bay (WTGB-101), a vital icebreaking tug of the United States Coast Guard. The artwork comes alive with a dramatic transformation: as you pour in a hot beverage, the image evolves, revealing the Katmai Bay in action.

A Tribute to Duty

The design prominently features the Katmai Bay cutting through icy waters. The dynamic representation of the vessel conveys its powerful role in navigating frozen waterways, symbolizing the Coast Guard's commitment to ensuring safe passage for commercial and Coast Guard vessels. The color-changing element further emphasizes the ship’s function, as the heat triggers a visual representation of ice melting around the ship.

Symbolism and Imagery

The use of nautical imagery, combined with the iconic silhouette of the WTGB-101, evokes a sense of strength, resilience, and dedicated service. The design pays homage to the cutter's primary mission: keeping shipping channels open, with the changing colors representing the transition from icy waters to open pathways. The subtle integration of the Coast Guard's emblem would further solidify the vessel's identity and its unwavering duty.

A Dynamic Experience

The color-changing aspect adds a unique, engaging element to the design. This creates a striking visual reminder of the cutter's mission. The mug's transformation into a lively representation of icebreaking operations brings the Katmai Bay's dedication to life in a creative, engaging manner.

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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.