Perfect for any hot drink you enjoy in the morning, the On-Off Coffee Mug reacts to them all.
You climb out of bed in the morning and you don't feel as on top of things, and luckily, your coffee mug feels the same way. This nifty coffee cup is heat sensitive, and reacts to whatever hot liquid you pour inside. During it's cold state, the mug is a regular black cup with the words 'OFF' written boldly across its face but once you pour your coffee, hot chocolate or tea inside of it, the coffee mug magically begins to turn white, revealing the white face underneath with 'ON' written boldly across it.
The On-Off Coffee Mug is the perfect gag gift for Mom, Dad, Grandma or Grandpa.
Light Switch-Themed Mugs
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