Warm Up With These 15 Heat-Sensitive Mugs

iStock
iStock

With the cold weather, you’re probably going to be drinking a lot of hot cocoa. Get your drink on in style with these mugs that change when filled with hot liquids.

Mental Floss has affiliate relationships with certain retailers and may receive a small percentage of any sale. But we only get commission on items you buy and don’t return, so we’re only happy if you’re happy. Thanks for helping us pay the bills!

1. CONNECT THE STARS; $15.95

What seems like a normal night sky is actually filled with constellations. Some hot water will reveal them to you—since constellations never look like anything without the drawn lines.

Buy on Amazon.

2. MASS EXTINCTION; $15.95

Some hot coffee turns these dinosaurs into fossils, just like that comet did.

Buy on Amazon.

3. WAKE UP; $7.32

This cup will mirror your own face as you drink your morning coffee.

Buy on Amazon.

4. WE’RE ALL MAD HERE (ABOUT THIS MUG); $13.95

Pour in your drink, and the feline from Alice in Wonderland disappears to just a grin, in typical Cheshire Cat fashion.

Buy on Amazon.

5. RECHARGE YOUR MUG; $16.54

This mug tells you when you need to recharge (reheat) your drink.

Buy on AliExpress.

6. FULL HEALTH; $10

Video game lovers will be soothed by the appearance of a full red heart. Just don’t get injured sipping on that hot cocoa.

Buy on Amazon.

7. PAC-MAN; $14.99

Filling up this mug is a lot like putting a quarter in the classic arcade game.

Buy on Amazon.

8. TETRIS; $10

Perfect for video game lovers who have a hard time looking away from their console.

Buy on Amazon.

9. TRAVEL THE GALAXY; $15.95

The TARDIS never stays in one place for long—as you’ll soon discover with this mug. Add hot liquid and your time machine will transport it from an English street to deep space.

Buy on Amazon.

10. PICK A BEAR; $14.02

Empty, this sleepy bear is all black. Full, it becomes an alert panda.

Buy on Amazon.

11. SWITCH TO PROTESTANTISM; $15.95

Once you fill this cup, Henry VIII's wives fade away, leaving only their cause of death.

Buy on Amazon.

12. WINTER IS COMING; $15.94

The Starks know cold, but they also know how to keep warm. Cuddle up with your mug and the Starks' house words of warning.

Buy on Amazon.

13. CAPED MUG CRUSADER; $19.99

What seems like an unassuming black mug is actually a super cool Batman mug in disguise.

Buy on Amazon.

14. SAVE CHRISTMAS; $14.75

Santa can’t navigate his sleigh until you’ve had your morning coffee.

Buy on Amazon.

15. THE NORTHERN LIGHTS; $14.99

The aurora borealis can be elusive in real life, but it just takes some hot coffee to make the lights appear on your mug.

Buy on ThinkGeek.

Put Summer in Hyperdrive With This Millennium Falcon Pool Float

SwimWays, Amazon
SwimWays, Amazon

If you're not as adventurous as Han Solo, you can take a ride on the Millennium Falcon from the comfort of your backyard pool. This Star Wars-themed pool float from SwimWays is modeled after the iconic spaceship from the movie franchise, and instead of flying at hyperdrive speeds, it's designed to drift through the water on leisurely summer days.

Measuring 5 feet long and 3.8 feet wide, the inflatable spacecraft is the perfect size to hold one passenger, either an adult or a child age 5 or older. It's also durable, with heavy-duty PVC material that's strong enough to withstand attacks from the Dark Side.

The float is just as fun at pool parties as it is on solitary days of relaxation. If you're planning a Star Wars-themed party this summer, SwimWays makes more pool accessories inspired by the series, including a Death Star beach ball, lightsaber dive sticks, and a BB-8 pool toy.

The Millennium Falcon pool float is available for $22 from Walmart. It's currently out of stock on Amazon (where it's listed for the same price), but it's set to ship again starting June 18, so you don't have long to wait if you prefer Prime shipping.

Star Wars-themed pool float in box.
SwimWays, Amazon

Mental Floss has affiliate relationships with certain retailers and may receive a small percentage of any sale. But we choose all products independently and only get commission on items you buy and don't return, so we're only happy if you're happy. Thanks for helping us pay the bills!

ThinkGeek Is Merging With GameStop, and Everything is 50 Percent Off Right Now

ThinkGeek
ThinkGeek

ThinkGeek, that beloved destination for nerdy goods like Star Trek bathing suits, Game of Thrones doormats, and astronomy-themed jewelry, is moving. While the site isn't going out of business, it is merging operations with its parent company, GameStop, and shutting down its website in the process. "After this move, you will be able to shop a curated selection of unique items historically found on ThinkGeek.com via a ThinkGeek section at GameStop," the site explains. And that's good news for you, if you're looking for a bargain. 

ThinkGeek is clearing out inventory by offering 50 percent off everything on its website. That includes 20-side-die-themed waffle makers, constellation lamps, unicorn wall sconces, and more. There are whimsical goods and apparel designed for fans of everything from Doctor Who to The Avengers to Star Wars to J.R.R. Tolkien to Harry Potter to Firefly to Pokemon. Love Funko POP! figurines? ThinkGeek has you covered. What about Super Mario Bros.? Heck yeah. This would be a great time to search for a Halloween costume.

Here are a few things that we would buy if we were you, but there are more cool designs available than we could ever highlight here. 


This 34-ounce TARDIS French press coffee maker is just $20.


ThinkGeek has a bunch of pop-culture themed wallets, but this Star Trek one is extra cool. And it is now just $10. (The NASA one is also great.)


This constellation backpack is out of this world. It's just $24 with the discount.


For $7.50, it's hard to resist this Mario-themed soap dispenser. Add a Mario-themed toothbrush holder to really make getting ready in the morning fun. If you're all about that bar soap, there's also a soap dish.


Wrap yourself in happiness with this Bob Ross-themed blanket that is just $17.50.


If you want to wear your fandom, this Harry Potter Deathly Hallows necklace set is an attractive choice. They're just $7.50 for two.


This handsome Mars watch doesn't have typical hour and minute hands. The moon Phobos orbits the Red Planet as the minute hand, the moon Deimos is the hour hand, and a miniature Mars rover takes the place of the second hand. It's a steal at just $20. 


When it's filled with hot liquid, this Game Boy mug changes from a blank screen to an image of Mario rescuing Daisy. It's only $7.50.


Several '90s cartoon-themed lunch boxes with puzzles are on sale, including ones celebrating Rocko's Modern Life, Hey Arnold!, and Rugrats. The puzzles that come inside the tin lunch boxes are 500 pieces. At less than $5 each, you should go ahead and buy all three.

Shop the sale here using the code MOVINGDAY until July 2. Unfortunately, because of the nature of the sale, all purchases are final, and you'll have to pay for shipping.

Mental Floss has affiliate relationships with certain retailers and may receive a small percentage of any sale. But we choose all products independently and only get commission on items you buy and don’t return, so we’re only happy if you’re happy. Thanks for helping us pay the bills!

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