This clever mug automatically displays βOFFβ when it is empty and βONβ when it is filled with coffee or tea. It is covered with a heat sensitive pigment which allows it to change from black to white or vice versa depending on whether it is filled or not. Charles & Marie are now selling the mug for $25.
Via: Charles & Marie
Marcelo Porpecelli
My world just got a little safer… Thank you people with a lot more time to spare than I do!
Daniel
on and off? why cant they just say empty or full? or hot or cold, or why not a smiley face for full – a sad face for empty. on and off makes no sense O_o
k
I agree with Daniel. I think they could have done something much cooler with the design.
tomtheman5
…..aaand I’ve found my father a Christmas gift.
Agree that on/off isn’t the greatest design, but he’ll still get a kick out of it!
Rachel
maybe the on/off stands for the caffeine. around my house, no one talks to anyone til weve had coffee because we are still half-asleep still. caffeine = “on” switch, im guessing.
yeoyo
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