10oz Ceramic Mug - This mug is perfect for tea, espresso, capuccino, and anything else the star watcher in you desires. Disappearing mugs are microwave safe, hand wash only. Heat Activated - Pour in hot liquid and the constellations magically appear. Includes: Cassiopea, Perseus, Saggitarius, Hercules, Andromeda, Scorpius, Taurus, Ursa Major (Big Dipper), Ursa Minor (Little Dipper), Orion, Gemini. 11 Constellations Appear - Star gazing and latte drinking don't have to be separate things any longer. Sip from our unique mug while staring up at the starry night, or reading your horoscope with your morning cup of tea. A Perfect Gift - For the star lover, star gazer, astronomer, astrologer, or anyone looking for a place to put their coffee. Zodiac lovers would get a kick out of it depending on their star sign (or if they generally like cool gifts). From the Unemployed Philosophers Guild. - Don't worry. We are employed, just not as philosophers. For whatever you need, we have presents of mind.