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Sold by: Sunshine Daydream STL
Sold by: Sunshine Daydream STL
(58 ratings)
88% positive over last 12 months
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The Unemployed Philosophers Guild Heat Changing Constellation Mug - Add Coffee or Tea and 11 Constellations Appear - Comes in a Fun Gift Box

4.6 4.6 out of 5 stars 2,783 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Novelty Coffee Mugs by The Unemployed Philosophers Guild

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Purchase options and add-ons

Brand The Unemployed Philosophers Guild
Color Black
Special Feature Color Changing
Style Classic
Theme Stars
Material
Ceramic
Capacity
10 Fluid Ounces
Occasion
Birthday
Item Weight
14.6 Ounces

About this item

  • 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.

Customer ratings by feature

Giftable
4.4 4.4
Sturdiness
4.2 4.2
Value for money
4.1 4.1
Durability
4.0 4.0

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$19.95
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Sold by The Unemployed Philosophers Guild and ships from Amazon Fulfillment.
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$12.99
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The Unemployed Philosophers Guild Heat Changing Constellation Mug - Add Coffee or Tea and 11 Constellations Appear - Comes in a Fun Gift Box
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Price$19.95$14.99-13% $12.98
Typical:$14.98
-13% $12.99
Typical:$14.99
$19.95$19.95
Delivery
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Customer Ratings
Giftable
4.4
4.7
4.0
4.0
4.9
Sturdiness
4.2
4.8
4.2
4.2
4.6
Durability
4.0
5.0
4.0
4.0
5.0
Easy to hold
5.0
5.0
5.0
Sold By
The Unemployed Philosophers Guild
MUGKISS SHOP
QianChi
QianChi
The Unemployed Philosophers Guild
The Unemployed Philosophers Guild
material
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
Ceramic
capacity
10 fluid ounces
11 ounces
12 ounces
12 ounces
12 fluid ounces
12 ounces
number of items
1
4
1
1
1
1
keyword type
novelty-coffee-mugs
novelty-coffee-mugs
novelty-coffee-mugs
novelty-coffee-mugs
novelty-coffee-mugs
novelty-coffee-mugs
weight
14.6 ounces
0.77 pounds
0.33 kilograms
0.33 kilograms
12 ounces
theme
Stars
Space
Funny,Holiday
Funny,Holiday
Party
Train

From the brand


Product Description

the unemployed philosophers guild constellation mug explanation
constellation heat changing mug

Starry starry night... Pour a hot beverage and 11 constellations emerge before your eyes.

Holds 12 oz.

Disappearing mugs are not dishwasher safe but are microwave safe.

constellation mug cold stars

constellation mug hot warm showing titles

constellation mug in box

Reach for the stars!

When the mug is cold, stare into the cool, dark sky.

Pour in a hot beverage and constellations appear!

Caution: Constellations are farther apart than they appear.

Make a great gift!

Comes in a beautiful box, making it a perfect present.

Constellation Mug Hot and Cold with box

Includes the constellations:

Cassiopeia / Perseus / Sagittarius / Hercules / Andromeda / Scorpius / Taurus / Ursa Major / Ursa Minor / Orion / Castor & Pollux

Product information

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The Unemployed Philosophers Guild Heat Changing Constellation Mug - Add Coffee or Tea and 11 Constellations Appear - Comes in a Fun Gift Box


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Customer reviews

4.6 out of 5 stars
4.6 out of 5
2,783 global ratings

Customers say

Customers like the quality and performance of the mug. They mention that it's unique and works great. They appreciate the heat aspect of it, saying that it works perfectly. However, some complain that it isn't dishwasher safe.

AI-generated from the text of customer reviews

358 customers mention296 positive62 negative

Customers like the quality of the mug. They mention it's a high-quality mug that is worth the price. Customers also appreciate the vivid display and the fact that it' s well-made.

"...or work an even better experience as it wakes you up and reminds you of something amazing, the stars and constellations...." Read more

"...Good sturdy mug, durable, and just plain fun. Well worth the price, and it made a great present...." Read more

"High quality, attention to detail, constellations are easily recognizable and legible." Read more

"Nice mug…great for anyone who loves astronomy." Read more

74 customers mention68 positive6 negative

Customers are satisfied with the performance of the kitchen product. They say that it works great, the heat aspect of it works perfectly, and it works as a coffee mug or desk accessory for the avid astronomer. They also mention that it came in one piece and has remained good so far.

"The mug works fine and doesn't have problems.It is exactly what it is - heat-sensitive tech on mugs is always gonna be fragile...." Read more

"...changes when you pour a hot drink in to show the constellations, worked great." Read more

"...It works wonderfully and is very fun to see the constellations appear!..." Read more

"It's very cute and it works, it just doesn't cover the whole mug and seems like it's a regular black mug with a sticker slapped on it...." Read more

60 customers mention10 positive50 negative

Customers are disappointed that the product is not dishwasher safe.

"...It's a hand wash only mug, which could be aggravating, but I understand why, and it's not a hard mug to clean, so I'm not annoyed by that..." Read more

"...The bottom of the mug states that it is not dishwasher safe, so any damage by the dishwasher is not on the makers of the mug...." Read more

"...size and love the star map--but dinging it a star because it has to be handwashed. My son ran it through the dishwasher and the film wrinkled." Read more

"The only negative…not dishwasher safe which I knew when I purchased" Read more

DO NOT MACHINE WASH
5 Stars
DO NOT MACHINE WASH
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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Top reviews from the United States

Reviewed in the United States on February 23, 2024
Color: BlackVerified Purchase
Reviewed in the United States on February 18, 2024
Color: BlackVerified Purchase
Reviewed in the United States on February 10, 2018
Color: BlackVerified Purchase
5 people found this helpful
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Reviewed in the United States on December 26, 2014
Color: BlackVerified Purchase
5 people found this helpful
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Reviewed in the United States on December 26, 2023
Color: BlackVerified Purchase
Reviewed in the United States on December 29, 2023
Color: BlackVerified Purchase
Reviewed in the United States on September 23, 2021
Color: BlackVerified Purchase
Customer image
3.0 out of 5 stars Novelty, far from durable.
Reviewed in the United States on September 23, 2021
So, we’re on the third cup as it’s easy to forget the “not-dishwasher-safe” part. A single ride in washer destroys the outer layer, which is basically a heat sensitive sticker on a plain black cup. Heat sensitive to reveal the constellations and of course to destroy it.

By the time we got the third one, the sticker peeled on the edge without anything, just new out of the box.

With that said, the mug needs a specific temperature to reveal the zodiacs as advertised. Too much, (210F boiling) and the whole sticker turns grey. (See pic) Too little, (120F from tap) and nothing happens. I’m mildly underwhelmed.
Images in this review
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Customer imageCustomer image
5 people found this helpful
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Top reviews from other countries

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Caitlin Anderson
5.0 out of 5 stars Really nice!
Reviewed in Canada on February 10, 2021
Color: BlackVerified Purchase
One person found this helpful
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valter toccafondi
5.0 out of 5 stars Da prendere in considerazione
Reviewed in Italy on April 29, 2022
Color: BlackVerified Purchase
neil roy martin
5.0 out of 5 stars Quality
Reviewed in the United Kingdom on April 24, 2021
Color: BlackVerified Purchase
RRC Perez
5.0 out of 5 stars Taza elegante de constelaciones
Reviewed in Mexico on February 9, 2020
Color: BlackVerified Purchase
Client d'Amazon
5.0 out of 5 stars a eu beaucoup de succès !
Reviewed in France on July 17, 2019
Color: BlackVerified Purchase
One person found this helpful
Report