Skip to product information
1 of 4

Flag of Ishikawa Prefecture Japan - Color Changing Mug 11oz

Flag of Ishikawa Prefecture Japan - Color Changing Mug 11oz

100 in stock

Regular price $17.99 USD
Regular price Sale price $17.99 USD
Sale Sold out
Shipping calculated at checkout.

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

This design reproduces the official flag of Ishikawa Prefecture, a region on Japan's Hokuriku coast, as a single clean emblem on a field of cerulean blue.

Visual Elements & Composition

Cerulean blue fills roughly three quarters of the field and white takes the rest, so the flag reads as a bold, high-contrast graphic rather than a busy picture. The emblem sits centred within a rectangle, drawn in flat vector shapes with no shading or texture. Its geometry follows the standardised proportions of the original prefectural flag, which gives the composition its orderly, formal balance.

Meaning & Symbolism

Prefectural flags are the civic shorthand of a region. Each one distils a place's identity into a single mark that appears on government buildings, schools and local events. This one stands for Ishikawa, a prefecture whose capital, Kanazawa, is known for its historic districts and traditional crafts. The modern flat style and restrained palette place it firmly in the contemporary era of flag design, even though the emblem carries older regional meaning.

Made for a Morning Mug

A mug is turned in the hand, so the emblem is seen in parts as the cup rotates, and the centred composition stays readable from every angle. The design also works with this object's trick: it is only faintly visible when the mug is cold, and the flag comes up clearly once a hot drink is poured in. Pour in the first coffee of the day and the blue emblem surfaces, a small civic ritual at the breakfast table.

Size

Bulk Discounts Available

These discounts apply to all products.

Buy 2
10% OFF
Buy 3+
20% OFF
Buy 5+
30% OFF
Buy 10+
40% OFF

Automatically applied at checkout.

View full details

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.