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Add hot liquid to reveal your design as the black mug turns white.
CA$35.50
per mug
 

Unicorn Rainbow Castle Mug – Happy Thoughts Gift

4.8 out of 5 stars rating
22767 Total Reviews |
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Color Morphing Mug
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Style: Color Morphing Mug

At first glance, it looks like a sleek black mug—but pour in something hot, and the magic begins. As the mug heats up, it transforms before your eyes, revealing your custom design, funny photo, or meaningful message against a bright white background. Made with a special heat-sensitive coating, this color-morphing mug is always a crowd-pleaser, perfect for surprising friends, gifting, or making your morning coffee a little more fun.

  • Available in 11-ounce or 15-ounce
  • Dimensions:
    • 11-ounce: 3.2” D x 3.8” H
    • 15-ounce: 3.4” D x 4.5” H
  • Strong, ceramic construction
  • Hand wash; microwave and dishwasher are not recommended due to the special, heat-sensitive coating that gives this mug its magic
  • Meets FDA requirements for food and beverage safety
  • Printed on demand in Reno, NV
  • Do not overfill and be careful with hot liquids that may scald
  • Keep out of reach of children when filled with hot liquid

About This Design

Add hot liquid to reveal your design as the black mug turns white.
Unicorn Rainbow Castle Mug – Happy Thoughts Gift

Unicorn Rainbow Castle Mug – Happy Thoughts Gift

Start your day with a splash of whimsy! The Happy Thoughts Mug features a charming unicorn trotting beneath a pastel rainbow beside a dreamy fairytale castle—crafted for those who believe in magic and morning motivation. This 11 oz morphing mug looks black when cool, but add hot liquid and voilà! The enchanted scene appears, bringing smiles with every sip. The colour-changing magic, paired with exclusive artwork and uplifting “Happy Thoughts” message, makes it the perfect gift for unicorn lovers, fantasy fans, and anyone needing a little sunshine in their cup. * Heat-sensitive ceramic with colour-reveal coating * Hand-washing is recommended for longevity * Great for birthdays, encouragement, and feel-good moments Make your mornings magical—one happy thought at a time.
Witty & Whimsical Boutique
Artwork designed by
Homedale, Idaho, United States
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Customer Reviews

4.8 out of 5 stars rating22.8K Total Reviews
20058 total 5-star reviews1916 total 4-star reviews347 total 3-star reviews163 total 2-star reviews283 total 1-star reviews
22,767 Reviews
Reviews for similar products
5.0 out of 5 stars rating
5 out of 5 stars rating
By K.March 2, 2016 • Verified Purchase
Classic Mug, 325 ml
Zazzle Reviewer Program
This mug is excellent! Great quality and clear pictures. I'm going to order one for myself. The printing turned out amazing, I was worried about a few pics but the quality is clear also the morphing is pretty cool, my boyfriend loved it:)
5.0 out of 5 stars rating
5 out of 5 stars rating
By r.March 26, 2012 • Verified Purchase
Two-Tone Mug, 325 ml
Zazzle Reviewer Program
Very nice! Everything from quailty of mug to pictures and lettering.like it a lot! Thank you. The printing is very clear and readible.
5.0 out of 5 stars rating
5 out of 5 stars rating
By AnonymousJanuary 9, 2025 • Verified Purchase
Classic Mug, 444 ml
The black cat in the window mug is magical. I didn’t know what a morphing mug was when I got it. When hot the cat appears and cold it looks like a plain black mug. .
from zazzle.com (US)

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Other Info

Product ID: 256795060427489239
Designed on 2025-06-26, 10:50 AM
Rating: G