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Flag of Saga Prefecture Japan - Color Changing Mug 11oz

Flag of Saga Prefecture Japan - 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 Saga Prefecture (Japan) - Color Morphing Mug Design

This design reproduces the official flag of Saga Prefecture, Japan, a single white camphor tree blossom set on a deep green field.

Visual Elements & Composition

Dark teal fills most of the surface, with pure white taking up much of the rest. Red appears only in small accents at the centre of the flower, where the stamens sit. The white blossom is stylised rather than botanically detailed, with rounded petals arranged around a central point, and it sits squarely in the middle of the field. Nothing competes with it. The flat vector rendering gives the emblem a crisp, modern clarity, and its geometric, heraldic layout reads as deliberate and calm.

Meaning & Symbolism

The green field stands for hope and peace, and for the plain fields that characterise the prefecture. The white camphor tree flower, the official tree of Saga, represents sincerity and passion. Taken together, the emblem expresses harmony, progress and passion. The flag was officially adopted on December 11, 1968, and it serves as the formal emblem of the Saga region.

Turning It in the Hand

A mug is a thing you turn and hold, so the blossom is seen up close and from more than one angle as you lift it. The white flower is designed to surface as the cup warms, so the emblem arrives in stages, first faint and then fully present once a hot drink goes in. It is a small, personal way to meet a prefectural emblem, and a good companion for the first coffee of the morning.

Size

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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.