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.

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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.

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2. MASS EXTINCTION; $15.95

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

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3. WAKE UP; $7.32

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

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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.

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5. RECHARGE YOUR MUG; $16.54

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

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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.

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7. PAC-MAN; $14.99

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

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8. TETRIS; $10

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

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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.

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10. PICK A BEAR; $14.02

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

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11. SWITCH TO PROTESTANTISM; $15.95

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

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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.

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13. CAPED MUG CRUSADER; $19.99

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

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14. SAVE CHRISTMAS; $14.75

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

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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.

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