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Heat Changing Constellation Mug by The Unemployed Philosophers Guild - Stars Appear in the Night Sky on this Color Changing Coffee Cup - 10 OZ - BPA Free Ceramic - Comes in a Fun Colorful Gift Box

4.2 out of 5 stars 386 customer reviews
| 16 answered questions

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  • 10 OZ CERAMIC MUG - This large mug is perfect for tea, espresso, capuccino, and anything else the star watcher in you desires to drink (whisky). Disapparing mugs are microwave safe, but hand wash only. Give it a nuclear blasting, but please don't put it in the dishwasher, or the stars may fade away forever, resulting in the universal heat death of the mug. It won't be a very fun cup after that, though it may still hold liquid. It just won't hold your attention.
  • 11 STAR CONSTELLATIONS APPEAR - Includes: Cassiopea, Perseus, Saggitarius, Hercules, Andromeda, Scorpius, Taurus, Ursa Major (Big Dipper), Ursa Minor (Little Dipper), Orion, Castor & Pollux. Star gazing and latte drinking don't have to be separate things any longer. Like having a star map pasted over a unique mug, you can use this while staring up at the starry night, or reading your horoscope with your morning cup of tea. This novelty mug is sure to please.
  • 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). There are a lot of gift mugs out there, but none that can promise to be such a quirky present. The mug comes in a great gift box, and is wonderful as a birthday gift, or Christmas present. Or, treat yourself to a well deserved cool gift.
  • HEAT ACTIVATED - Pour in hot liquid and watch the constellations magically appear in the night sky. Our color-changing mugs are thermochromic, which is a scientific word for space magic. We're not sure how it works, but we're certain ours is the best coffee mug for when you want one celestial thermal mug, but you get a whole new one when your Americano goes in. There's nothing quite like enjoying your cappuccino, and then enjoying it even more because of the crazy things happening on your mug.
  • THE ONLY SAFE CONSTELLATION MUG - There are many many sellers on Amazon selling cheaply made immitations. Not only are they low quality knock-offs, but they are also potentially dangerous for consumption. Our mug is tested and certified safe by the FDA. We (The Unemployed Philosophers Guild) are a small, Brooklyn-based gift company offering unique presents for the sophisticated gift giver. We're proud of our Constellation Mug, and we want the planet to see it. Accept no immitations.
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$13.95 & FREE Shipping on orders over $49. Details In Stock. Sold by The Unemployed Philosophers Guild and Fulfilled by Amazon.

Frequently Bought Together

  • Heat Changing Constellation Mug by The Unemployed Philosophers Guild - Stars Appear in the Night Sky on this Color Changing Coffee Cup - 10 OZ - BPA Free Ceramic - Comes in a Fun Colorful Gift Box
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This item Heat Changing Constellation Mug by The Unemployed Philosophers Guild - Stars Appear in the Night Sky on this Color Changing Coffee Cup - 10 OZ - BPA Free Ceramic - Comes in a Fun Colorful Gift Box
Customer Rating 4 out of 5 stars (386) 4 out of 5 stars (85) 4 out of 5 stars (207) 2 out of 5 stars (4)
Price $13.95 $9.05 $19.99 $27.50
Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping
Sold By The Unemployed Philosophers Guild ACME Products Co Sure Thing Toys Ac Enterprises
Color Black Blue/White Black Black
Material Type ceramic Ceramic Ceramic ceramic
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Product Description



The Constellation Mug


Starry starry night.... Pour a hot cup of coffee and 11 constellations emerge before your eyes. 10 ounce cup. Microwave safe, not dishwasher safe.

This thermochromatic disappearing mug includes these star constellations:

Cassiopea
Perseus
Saggitarius
Hercules
Andromeda
Scorpius
Taurus
Ursa Major
Ursa Minor
Orion
Castor & Pollux

Brought to You by The Unemployed Philosophers Guild

The origins of the Unemployed Philosophers Guild are shrouded in mystery. Some accounts trace the Guild's birth to Athens in the latter half of the 4th century BCE. Allegedly, several lesser philosophers grew weary of the endless Socratic dialogue endemic in their trade and turned to crafting household implements and playthings. (Hence the assertions that Socrates quaffed his hemlock poison from a Guild-designed chalice, though vigorous debate surrounds the question of whether it was a "disappearing" chalice.)

Others argue that the UPG dates from the High Middle Ages, when the Philosophers Guild entered the world of commerce by selling bawdy pamphlets to pilgrims facing long lines for the restroom. Business boomed until 1211 when Pope Innocent III condemned the publications. Not surprisingly, this led to increased sales, even as half our membership was burned at the stake.

More recently, revisionist historians have pinpointed the birth of the Guild to the time it was still cool to live in New York City's Lower East Side. Two brothers turned their inner creativity and love of paying rent towards fulfilling the people's needs for finger puppets, warm slippers, coffee cups, and cracking up at stuff.



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Customer Reviews

Top Customer Reviews

Verified Purchase
I like the mug and it is a lot of fun. My one grievance is that the background doesn't really stay black when your hot drink in it. Take that as you will
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This came in perfect condition. I have used it a few times but don't favor it over any other coffee mug. The contellations show because of a clear "tape" that is on the outside of the mug, The edges of the tape are clearly visible and kind of take away from it. While I like it, I wouldn't pay the same price for it again.
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This is a nice mug, but the heat sensitive paper on mine was upside down when I received it! Therefore, all the images and words are upside and looks kinda silly. I'm disappointed.
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When my daughter needed a birthday gift for her boyfriend, this was a perfect choice! They like watching the evening stars and the Constellations Mug is a reminder of their time together. We bought two of these mugs, one for my daughter and one for her boyfriend. Both arrived in perfect condition- no chips or damage. When the mug is cold, its a dull-black color with white dots. When I filled it with hot chocolate, nothing changed on the mug. Next I tested it with hot tap water, and nothing changed on the mug. I used my electronic tea kettle and boiled water to 212 degrees and the mug finally changed. It was fun to observe! The mug retained the constellation image for about one hour after heating with boiling water. The hot water stayed warm inside the mug.

The mug is made in China, care instructions say: do not machine wash, do not use a scouring agent, do not soak for long periods of time. Mug is microwave safe and NOT dishwasher safe.
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Verified Purchase
The mug works as advertized. I am very careful to wash the inside and not upset the outside. I like the mug except that it smells like gasoline when hot. I think this is the glue evaporating. Because of the smell I bought another mug and don't use this one anymore.
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I got this gift for my boyfriend who is working on becoming an astronomer. I was a little nervous about buying from here since a good chunk of the reviewers complained about bad packaging & a broken mug. The little bunched up brown paper that surrounded the box wouldn't have been as good as bubble wrap or foam, but it was good enough to keep my mug intact so I can't complain. The package arrived on time & the mug looked even nicer than I had expected. I heard it had a plastic layer around it, so I was afraid it might look a tad cheap, but I am pleased to say that I was wrong & that it came out really nice. It's a high quality mug that is worth the price, and my boyfriend ended up absolutely loving it. It was a great purchase with a good experience & I highly reccomend it to anyone considering purchasing.
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I've ordered two as gifts. It seems like the overlay of the constellations is off a bit, which you can tell when there is hot water in it. Understanding that this is initially coming from China to a reseller, you can't ask for excellence. Do NOT put this in the dishwasher. Hand wash only, otherwise the wrapping on the mug will come off. The materials are not directly printed on the mug.
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I bought this back in November (it's now April) so I've been using it daily for nearly 6 months now, and I hand wash it every day, and microwave it every day and have not had any issues with the constellation coating ( or sticker as some call it). EXCEPT, when a mug says "DO NOT MACHINE WASH" in big bold letters at the bottom, do not put it in the dishwasher, even if it's while you're absentmindedly loading dishes. I didn't realize what I had done until I took it out of the dishwasher and it had these weird white spots all over. I don't think they were spots from the soap or the water, since none of my other black mugs have spots, but whatever it was my mug looked ruined. I tried to gently rub them off, washed it, rinsed it, wiped it, but the white spots didn't go away. I still used it every day, though, and the good news is that little by little the spots have disappeared. There's still one faint spot left, but the mug has fixed itself. So if you hate doing dishes like I do, and you find that you absentmindedly threw your mug in the washer, don't despair. Keep using it and it should fix itself within a couple of months. I'm attaching pictures of the mug right after the dishwasher.
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