ON/OFF and Monday Coffee Mugs Change Color When A Hot Beverage is Added

ON/OFF Mug

These ON/OFF and Monday coffee mugs by The Cottage Industry change from off to on and from sad to happy when a hot beverage is added. The mugs are available to purchase on Amazon.

Monday Mug

images via The Cottage Industry

via Blame It On The Voices

Kimber Streams
Kimber Streams