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  • National Labor Relations Board - Color Changing Coffee Mug 11oz - Go Mug Yourself
  • National Labor Relations Board - Color Changing Coffee Mug - Go Mug Yourself
  • National Labor Relations Board - Color Changing Coffee Mug - Go Mug Yourself
  • National Labor Relations Board - Color Changing Coffee Mug - Go Mug Yourself
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National Labor Relations Board - Color Changing Mug 11oz

National Labor Relations Board - Color Changing Mug 11oz

100 in stock

$17.99 USD
$17.99 USD
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National Labor Relations Board - Color Morphing Mug Design

This design is named for the National Labor Relations Board, the United States federal agency that protects the right of private-sector workers to organize, join unions and bargain collectively.

Visual Elements & Composition

The artwork is a full wraparound print, so the image runs continuously around the body of the mug rather than sitting on one face. It is built to be read in two stages. When the mug is cold, the design is only faintly visible, a ghost on the surface. Once a hot drink is poured in, it comes up clearly. The mug's own colours do their part too: black on the outside, white on the inside, with the heat-reactive print working against that contrast.

Meaning & Symbolism

The NLRB was created in 1935 under the National Labor Relations Act, often called the Wagner Act. Its core job is to safeguard collective action in the workplace. It conducts elections to determine whether workers want a union, and it investigates unfair labor practices by employers and unions alike. The name carries a clear message: work is a shared arrangement, and the rules that govern it exist to protect the people doing the labour.

Turning It in the Hand

A mug is handled, turned and lifted many times a day, so the reveal happens in the course of ordinary use. The image appears as the coffee or tea warms the ceramic, and it is most visible around the part of the cup that meets your hand and mouth. That suits a subject about things surfacing through collective effort. The picture is not fully present until something warm is poured in, and then it is there for every sip.

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.