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

This heat-changing constellation mug is absolutely fantastic! The moment you pour in a hot beverage, the stars come to life, revealing 11 beautiful constellations—it’s like having a little bit of the night sky right in your hands. The transformation is smooth and happens quickly, adding a fun and mesmerizing touch to my morning coffee routine.The quality is great—the mug has a solid feel, and the print is crisp and well-detailed. It also comes in a fun and well-designed gift box, making it a perfect present for astronomy lovers, science geeks, or anyone who enjoys unique mugs.One thing to note: since it’s a heat-sensitive design, it’s best to hand wash to preserve the magic for as long as possible. But honestly, that’s a small trade-offLove it!!!!!

Anthony Wesley2/9/2018Amazon Product Review: Color-Changing MugRecently, I purchased this color-changing constellation mug from Amazon. I absolutely love it!. I decided to buy this mug for my beautiful girlfriend, who loves to look at stars every time we walk outside. It was part of a Christmas gift for her. I am so happy I bought it. I would definitely rate this product 5 out of 5 stars.Overall:To evaluate this product, I used simple criteria. One: the insulation of the mug. With this specific mug, I realized that it was a great insulator of heat, keeping my girlfriend’s coffee warmer for a longer amount of time than her average $3 mugs from Walmart.Appearance:Another criteria of judging I used was the overall appearance of the mug. This specific mug aside from it’s amazing color changing qualities, has a very smooth and shiny seal all over it. Making the mug easy to clean and easy to hold. When you first see the mug, it looks plain black and has stars all over it, even the handle. When you put hot liquid in the mug, (ie: coffee, hot chocolate, tea..) the entire mug changes color to let the owner see constellations clearly outlined all around the mug! The effect of the color-change is extremely fascinating overall.Functionality:It totally brings the mug to life in a fun way. Using this mug makes waking up early for class or work an even better experience as it wakes you up and reminds you of something amazing, the stars and constellations. As the liquid cools down again, the mug changes back to a plain black color, making it also reusable. The negatives about this product are that the handle of the star mug does not change color, but scientifically it makes sense why it wouldn't. The mug also is preferred to be hand washed only. I understand why it is not machine washable because it is so sensitive to heat, but it does make it a little more cumbersome to clean.Utilization:Lastly, I think this mug is perfect for those who live in cold weather (and enjoy hot drinks), or college students (who are fueled on coffee). This mug would even be perfect for learning children as when the constellations appear they also have names to go along with them so they understand. There are also nontraditional ways yo use this mug. I have commonly used this mug for the consumption of ice cream and it works perfectly when I also want to cool off on a hot day.My girlfriend drinks coffee at least 5 times per week, and she uses this mug as often as she can! I strongly recommend purchasing this mug!

This is a really cool coffee mug! It changes with heat. I bought it for a friend, and she loved it.

Purchased this Constellation mug because I love the other bird version from the same company. I look forward to using it this weekend while Orion is doing something special in the sky.The mug instructions are clear. But I didn’t follow them on the bird version, and it melted a bird in the dishwasher. ☹️ my sister gave me that mug.

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.

I absolutely LOVE this mug! I love looking at the stars on a clear night and when I saw this mug, I decided to buy it. It arrived quickly and in one piece.When I first used it, I didn't realize that there was a protective film that needed to be removed so I thought it was ruined. That was my fault. Just remember to remove the film before use.Some of the low star reviews relate to damage after putting the mug in a dishwasher. Do not put this mug in the dishwasher! 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. I just wash hand wash my mug after I am done using it and do not have any problems.I very much enjoy this mug. It is a little more pricey than most, but it's beautiful and worth it. It is so fun to see the constellations appear when your beverage is hot and disappear when the beverage cools down. I highly recommend this mug as a gift or as a personal purchase.