when cold = mug shows array of white stars on blue
when hot = mug transforms into Stars & Stripes flag
for coffee, tea and hot chocolate!
Stars and...you guessed it: Stripes! This mug is covered in stars, that is, until you fill it with a hot beverage. As soon as you pour in a hot coffee (tea or hot chocolate will do nicely too) the mug's appearance quickly changes. Within a minute, most of the stars will give way to the stripes...and you are left with a patriotic mug! The mug is dishwasher (not hot!) and microwave proof...however for long life it's best not too as the special coating will deteriorate sooner.