Home / Color Changing Coffee Mugs / Captain Emanuel Eller, Union Officer in the 32Nd Indiana Regiment, Head-and-Shoulders Portrait, Facing Front (U.S. Civil War) Color Changing Mug 11oz
  • Captain Emanuel Eller, Union Officer in the 32Nd Indiana Regiment, Head-and-Shoulders Portrait, Facing Front (U.S. Civil War) Color Changing Coffee Mug 11oz Default Title 11oz - Go Mug Yourself
  • Captain Emanuel Eller, Union Officer in the 32Nd Indiana Regiment, Head-and-Shoulders Portrait, Facing Front (U.S. Civil War) Color Changing Coffee Mug 11oz - Go Mug Yourself
  • Captain Emanuel Eller, Union Officer in the 32Nd Indiana Regiment, Head-and-Shoulders Portrait, Facing Front (U.S. Civil War) Color Changing Coffee Mug 11oz - Go Mug Yourself
  • Captain Emanuel Eller, Union Officer in the 32Nd Indiana Regiment, Head-and-Shoulders Portrait, Facing Front (U.S. Civil War) Color Changing Coffee Mug 11oz - Go Mug Yourself
  • Captain Emanuel Eller, Union Officer in the 32Nd Indiana Regiment, Head-and-Shoulders Portrait, Facing Front (U.S. Civil War) Color Changing Coffee Mug 11oz - Go Mug Yourself
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Captain Emanuel Eller, Union Officer in the 32Nd Indiana Regiment, Head-and-Shoulders Portrait, Facing Front (U.S. Civil War) Color Changing Mug 11oz

Captain Emanuel Eller, Union Officer in the 32Nd Indiana Regiment, Head-and-Shoulders Portrait, Facing Front (U.S. Civil War) Color Changing Mug 11oz

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$17.99 USD
$17.99 USD
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Captain Emanuel Eller, Union Officer in the 32nd Indiana Regiment - Color Morphing Mug Design

This is a formal head-and-shoulders portrait of Captain Emanuel Eller, shown facing front and looking straight out of the frame.

Visual Elements & Composition

The composition is deliberately plain. The subject fills the frame from the shoulders up, so nothing competes with the face. Because he faces the viewer directly, the eyes become the focal point, and the image reads as a direct address rather than a candid moment. The portrait is rendered in the restrained tones typical of its period, with the uniform and collar anchoring the lower edge of the image.

Meaning & Symbolism

The portrait belongs to the American Civil War, and its subject was an officer of the 32nd Indiana Regiment, a Union infantry unit raised in 1861. Portraits of company and field officers like Eller were often made to be kept by families, and they preserve the individual behind a regiment's long roll of service. The formal pose reflects the seriousness of the era, when a man in uniform stood for a cause and for the men under his command.

On the Color Morphing Mug

A mug is held in both hands and turned slowly, so the portrait is seen at close range, one angle at a time. The image is designed to appear as the mug warms, so Captain Eller emerges gradually as a hot drink goes in, giving the morning cup a small moment of reveal. For anyone who collects military history or has a Civil War ancestor, it is a personal way to keep a historic face within easy view.

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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.