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Flag of Guelph Canada - Color Changing Mug 11oz

Flag of Guelph Canada - 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 Guelph - Color Changing Mug Design

This design displays the official municipal flag of Guelph, Ontario, representing the city’s civic identity and administrative heraldry.

Visual Presentation

The composition centers on the formal banner of the city, utilizing a structured layout that balances municipal iconography with clear, recognizable geometry. The colors are rendered to match the official palette of the Guelph municipality, ensuring the flag remains distinct against the surface of the mug. The design is a faithful reproduction of the official municipal banner, capturing the specific arrangements of shapes and lines that define the city’s standard.

Heraldry and Civic Roots

The flag serves as the primary visual emblem for Guelph, acting as a shorthand for the city's political and geographic history within Ontario. By featuring the municipal flag, this artwork functions as a piece of regional vexillology, signaling an affiliation with the local government and the wider community. It bypasses abstract aesthetics to prioritize a direct, formal connection to the city itself, making it a functional display of pride for those connected to this specific Canadian locale.

On the Color Changing Mug

The magic of this ceramic vessel lies in the transition: the flag remains hidden beneath a matte black surface until a hot pour warms the mug. As the temperature rises, the dark exterior fades away, allowing the official colors of the Guelph flag to emerge and dominate the cup’s profile. Turning the mug in your hand reveals the full extent of the graphic, turning a routine morning coffee into a deliberate act of civic acknowledgement that appears only when the mug is ready for use.

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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.