Home / Color Changing Coffee Mugs / Flag of Red Oak, Iowa - Color Changing Mug 11oz
  • Flag of Red Oak, Iowa - Color Changing Coffee Mug 11oz - Go Mug Yourself
  • Flag of Red Oak, Iowa - Color Changing Coffee Mug - Go Mug Yourself
  • Flag of Red Oak, Iowa - Color Changing Coffee Mug - Go Mug Yourself
  • Flag of Red Oak, Iowa - Color Changing Coffee Mug - Go Mug Yourself
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Flag of Red Oak, Iowa - Color Changing Mug 11oz

Flag of Red Oak, Iowa - Color Changing Mug 11oz

100 in stock

$17.99 USD
$17.99 USD
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Flag of Red Oak, Iowa - Color Morphing Mug Design

A red oak tree stands over the name of its town, printed in bold red on a clean white field.

Visual Elements & Composition

The emblem is built from two colours only. A bright red oak tree silhouette sits centred above the words "RED OAK, IOWA," and the whole flag is set against a stark white field. Nothing crowds the edges. The tree is the dominant shape, its solid outline readable from across a table, while the lettering below keeps the layout civic and direct. The high contrast between red and white makes the design bold and recognisable at a glance.

Meaning & Symbolism

The red oak is the emblem's central symbol, and the flag identifies Red Oak, Iowa, a city in the United States. Its minimalist, formal style belongs to the 1940s, when civic flags were drawn to be read quickly. An original city flag is preserved at the Red Oak Public Library. This version is tied to the SS Red Oak Victory, launched on November 9, 1944, which flew it from its signal halyard. The emblem therefore carries a maritime story, with the town's name travelling far from home.

On the Color Morphing Mug

A mug is held in the hand and turned as it is drunk from, so the design is seen from many angles rather than all at once. The flag stays faint while the cup is cold and surfaces when a hot drink is poured in, much like a flag rising up a halyard as the wind catches it. Pour in something hot and the red oak and its lettering come up through the surface, turning a quiet morning cup into a small reveal for whoever is holding it.

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.