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  • National Mine Map Repository - Color Changing Coffee Mug 11oz - Go Mug Yourself
  • National Mine Map Repository - Color Changing Coffee Mug - Go Mug Yourself
  • National Mine Map Repository - Color Changing Coffee Mug - Go Mug Yourself
  • National Mine Map Repository - Color Changing Coffee Mug - Go Mug Yourself
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National Mine Map Repository - Color Changing Mug 11oz

National Mine Map Repository - Color Changing Mug 11oz

100 in stock

$17.99 USD
$17.99 USD
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National Mine Map Repository - Color Morphing Mug Design

This design takes its name from one of the most practical archives in American industry: a collection of underground mine maps, drawn by hand and by survey crews, that records where coal and other minerals were worked.

Visual Elements & Composition

The composition is built on the logic of a survey plan. Straight passages, grid-like lines and measured boundaries organise the surface, so the eye reads it the way a surveyor would, moving from one working to the next. Lettering and numerals sit along the margins as labels, the way they would on a sheet filed in a drawer. Because the design is printed across the full wraparound, the lines continue around the cup without a break, and the drawing reads as one continuous plan rather than a single panel.

Meaning & Symbolism

A mine map is a record of unseen ground. It holds the knowledge that miners and safety inspectors needed to find their way, avoid old workings and keep crews safe, which makes each sheet a quiet act of care. The repository holds these drawings for future use, so the design honours the people who went underground and the engineers who mapped what they found. It is a tribute to careful, patient measurement.

Designed for the Hand and the Hot Drink

A mug is a thing you turn in your hands, and this design rewards that habit. The faint drawing is most visible when the cup is cold, and it comes into focus as warm coffee or tea is poured in, so the map appears as the morning begins. Each refill brings the plan back into view, which suits a drawing about tracing routes through hidden ground.

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.