The On/Off mug is a great creation for those who have trouble waking up in the morning, especially before their first dose of caffeine.
Changing shades with temperature differences, the On/Off mug goes black (off) when the cup is cold or empty, and white (on) when fresh coffee is poured into it. Interesting and definitely creative, take a look at this On/Off mug in the featured gallery and prepare to get your drink on.
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