Home / Color Changing Coffee Mugs / Point of Rocks, Va., Vicinity. Crew of U.S. Army Gunboat General Foster Ashore With Howitzers (U.S. Civil War) Color Changing Mug 11oz
  • Point of Rocks, Va., Vicinity. Crew of U.S. Army Gunboat General Foster Ashore With Howitzers (U.S. Civil War) Color Changing Coffee Mug 11oz Default Title 11oz - Go Mug Yourself
  • Point of Rocks, Va., Vicinity. Crew of U.S. Army Gunboat General Foster Ashore With Howitzers (U.S. Civil War) Color Changing Coffee Mug 11oz - Go Mug Yourself
  • Point of Rocks, Va., Vicinity. Crew of U.S. Army Gunboat General Foster Ashore With Howitzers (U.S. Civil War) Color Changing Coffee Mug 11oz - Go Mug Yourself
  • Point of Rocks, Va., Vicinity. Crew of U.S. Army Gunboat General Foster Ashore With Howitzers (U.S. Civil War) Color Changing Coffee Mug 11oz - Go Mug Yourself
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Point of Rocks, Va., Vicinity. Crew of U.S. Army Gunboat General Foster Ashore With Howitzers (U.S. Civil War) Color Changing Mug 11oz

Point of Rocks, Va., Vicinity. Crew of U.S. Army Gunboat General Foster Ashore With Howitzers (U.S. Civil War) Color Changing Mug 11oz

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$17.99 USD
$17.99 USD
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Point of Rocks, Va., Vicinity: Crew of U.S. Army Gunboat General Foster Ashore With Howitzers - Color Morphing Mug Design

This design shows the crew of the U.S. Army gunboat General Foster coming ashore near Point of Rocks, Virginia, with their howitzers.

Visual Elements & Composition

The scene is built around people and equipment. Sailors and soldiers work together to move heavy artillery across varied ground, so the crew and their howitzers dominate the picture rather than the landscape around them. The vessel's name is included as a written identifier, anchoring the image to a specific unit and operation. The documentary treatment keeps the focus on the physical effort of the moment: the handling of the guns, the ground they are dragged over, and the coordination required to get them off the boat.

Meaning & Symbolism

The image records a landing from a riverine vessel, a point where naval transport became land warfare. Howitzers were heavy, awkward pieces, and getting them ashore demanded logistics as much as firepower. That is the story here: the unglamorous labour of deployment, the strategy hidden inside it, and the crews who carried it out. Drawn from the mid-nineteenth century, the design belongs to the American Civil War and to a period when gunboats were pressed into service on rivers and coastlines across Virginia.

Working the Artwork onto a Mug

A mug is turned in the hand, so the scene reads in pieces as it is rotated, the crew appearing and reappearing around the curve. The design is faint when the mug is cold and comes forward as hot coffee or tea is poured in, so the landing seems to surface slowly, the way a memory of a campaign does. It makes a thoughtful gift for a reader of military history, and a conversation starter on the desk every morning.

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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.