By Ben on Wed Apr 28 2010
Mug with a temperature sensor
Gear |  Office
Mug with a temperature sensor($28) from Art Lebedev. You will find the silhouette of a battery symbol on the outside, a temperature strip become visible only when the mercury rises to 36 degrees Celcius (96.8 Fahrenheit)
“The image becomes visible if you pour a drink hotter than 36 degrees Celcius (96.8 Fahrenheit).”