It's Caturday Grumpy Cat Magic Mug
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It's Caturday Grumpy Cat Magic Mug is the perfect mug for you or your significant other. You may even crack a smile over your morning cup of Joe with this official Grumpy Cat Magic Mug! What makes this mug especially grumpy? Well, much like Grumpy Cat's mood this mug starts black, once heated the mug then reveals the unique design! That's a heck of a way to start the day! Cup is 15 ounces. Due to the nature of this item it is suggested to be washed by hand.