Hot and Cold Coffee Mug Tells You What's Up or Down

We love coffee mugs that change color, but we really love coffee mugs that change color based on temperature like this hot and cold coffee mug. You can make the mug go all cold, all hot, or even half and half depending on what single cup coffee you put into it. And because you'll always know the temperature of the coffee in your mug, you can easily avoid scalding your lips accidentally.

Via Foolish Gadgets at I Want One of Those

Read More in: Coffee Cups & Travel Mugs

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