---
product_id: 27863723
title: "Morphing Mugs Harry Potter - Hogwarts Marauder's Map - I Solemnly Swear - 11 oz Heat Sensitive Mug – Image Revealed With HOT Liquid added! - Officially Licensed Collectible"
brand: "morphing mugs"
price: "€ 48.66"
currency: EUR
in_stock: true
reviews_count: 8
category: "Morphing Mugs"
url: https://www.desertcart.pt/products/27863723-morphing-mugs-harry-potter-hogwarts-marauders-map-i-solemnly-swear
store_origin: PT
region: Portugal
---

# 11 oz ceramic capacity Heat-activated color change Officially licensed Harry Potter design Morphing Mugs Harry Potter - Hogwarts Marauder's Map - I Solemnly Swear - 11 oz Heat Sensitive Mug – Image Revealed With HOT Liquid added! - Officially Licensed Collectible

**Brand:** morphing mugs
**Price:** € 48.66
**Availability:** ✅ In Stock

## Summary

> 🧙‍♂️ Sip the Spell, Reveal the Secret!

## Quick Answers

- **What is this?** Morphing Mugs Harry Potter - Hogwarts Marauder's Map - I Solemnly Swear - 11 oz Heat Sensitive Mug – Image Revealed With HOT Liquid added! - Officially Licensed Collectible by morphing mugs
- **How much does it cost?** € 48.66 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/27863723-morphing-mugs-harry-potter-hogwarts-marauders-map-i-solemnly-swear)

## Best For

- morphing mugs enthusiasts

## Why This Product

- Trusted morphing mugs brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Officially Licensed Collectible:** Authentic Harry Potter memorabilia that elevates your fandom cred.
- • **Reveal the Magic with Every Sip:** Watch the Marauder’s Map appear as your drink heats up—instant wizardry in your hands.
- • **Perfect Size for Your Daily Brew:** 11 oz capacity balances your caffeine fix with style and function.
- • **A Must-Have for Millennial Wizards:** Join the exclusive club of Harry Potter fans who sip in style and mischief managed.
- • **Hand Wash Only for Lasting Enchantment:** Preserve the heat-sensitive magic by avoiding the dishwasher and microwave.

## Overview

This 11 oz ceramic Morphing Mug features heat-sensitive technology that reveals the iconic Hogwarts Marauder’s Map design when filled with hot liquid. Officially licensed by Harry Potter, it’s a collectible piece designed for adult fans who want a magical twist to their daily coffee ritual. Hand wash only and not microwave safe, this mug combines fandom with functional style.

## Description

desertcart.com: Morphing Mugs Harry Potter - Hogwarts Marauder's Map - I Solemnly Swear - 11 oz Heat Sensitive Mug – Image Revealed With HOT Liquid added! - Officially Licensed Collectible : Home & Kitchen

Review: Best mug - Best mug of Harry Potter and looks pretty cool.
Review: Great gift for Potter fans - I bought this as a gift for a close relative. Her home burned to the ground in 2021 so she had none of her childhood keepsakes. She absolutely loved this mug. It comes out of the box looking like a plain black coffee cup. When she added her hot drink it became a very cool Hogwarts surprise. There were squeals of delight from a grown woman. I would definitely recommend this for any Harry Potter fan.

## Features

- You will need your caffeine fix if you want to keep your mischief managed! Solemnly swear you are up to no good with this 11 oz heat sensitive mug.
- To everyone else, this mug appears to be black. Add hot liquid and it will be revealed that you solemnly swear to be up to no good with the design of the Marauder’s Map!
- We didn't use the Doubling Charm on this product! Images are to show the mug’s design from left to right. This listing is for one (1) ceramic mug.
- To preserve the mystical abilities of this mug, we recommend hand wash only. This mug is also not microwave-safe.
- Trend Setters Ltd. creates a variety of officially licensed products from your favorite fandoms as well as hundreds of original designs. This product was designed in the USA with imported parts.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01ETLZERO |
| Age Range (Description) | Adult |
| Best Sellers Rank | #168,771 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #3,186 in Novelty Coffee Mugs |
| Brand | Morphing Mugs |
| Cartoon Character | Harry Potter |
| Color | Marauder's Map |
| Customer Reviews | 4.7 4.7 out of 5 stars (7,235) |
| Date First Available | April 26, 2016 |
| Included Components | Handle |
| Is Discontinued By Manufacturer | No |
| Item Weight | 11.2 ounces |
| Item model number | MMUG298 |
| Manufacturer | Trend Setters Ltd. |
| Material Feature | Ceramic |
| Number of Items | 1 |
| Pattern | Letter Print |
| Product Care Instructions | Not Machine Washable, Not Microwave Safe |
| Product Dimensions | 4"W x 4"H |
| Recommended Uses For Product | Home |
| Reusability | Reusable |
| Shape | Round |
| Size | 11 Ounces |
| Special Feature | Color Changing |
| Style | Modern |
| Theme | Harry Potter,Map |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Morphing Mugs
- **Capacity:** 11 ounces
- **Color:** Marauder's Map
- **Material:** Ceramic, Paper
- **Special Feature:** Color Changing

## Images

![Morphing Mugs Harry Potter - Hogwarts Marauder's Map - I Solemnly Swear - 11 oz Heat Sensitive Mug – Image Revealed With HOT Liquid added! - Officially Licensed Collectible - Image 1](https://m.media-amazon.com/images/I/61TzxpLxfIL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: Is it dishwasher safe?**
A: Definitely not! The image completely melted off.

**Q: Has anyone consistently used it in the microwave and if so how did it hold up?**
A: have not used with a microwave

**Q: about how long average  will the words show on the mug with hot liquid ?  1 min 5 min or longer**
A: It was a gift, but I believe the message shows until the liquid cools or is gone.  It goes away as you drink the hot liquid.

**Q: How many mugs do you get in the set?**
A: 1

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best mug
*by K***Z on March 8, 2025*

Best mug of Harry Potter and looks pretty cool.

### ⭐⭐⭐⭐⭐ Great gift for Potter fans
*by C***L on January 14, 2022*

I bought this as a gift for a close relative. Her home burned to the ground in 2021 so she had none of her childhood keepsakes. She absolutely loved this mug. It comes out of the box looking like a plain black coffee cup. When she added her hot drink it became a very cool Hogwarts surprise. There were squeals of delight from a grown woman. I would definitely recommend this for any Harry Potter fan.

### ⭐⭐⭐⭐⭐ came as shown
*by A***A on December 26, 2025*

my mom loved it

## Frequently Bought Together

- Morphing Mugs Harry Potter - Hogwarts Marauder's Map - I Solemnly Swear - 11 oz Heat Sensitive Mug – Image Revealed With HOT Liquid added! - Officially Licensed Collectible
- Morphing Mugs Harry Potter - Marauder's Map - I Solemnly Swear – 16 oz Large Ceramic Heat Sensitive Clue Mug – Full image revealed when HOT liquid is added
- Harry Potter Jelly Gummy Candy Slugs, Bertie Botts Every Flavour Jelly Beans & Chocolate Crispy Frog (Bundle of 3 Items)

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-03-20*