---
product_id: 92066284
title: "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 MMUGC924"
brand: "morphing mugs"
price: "₩93502"
currency: KRW
in_stock: true
reviews_count: 8
category: "Morphing Mugs"
url: https://www.desertcart.kr/products/92066284-morphing-mugs-harry-potter-marauders-map-i-solemnly-swear-16
store_origin: KR
region: South Korea
---

# Large, sturdy ceramic build 16 oz heat-activated reveal Official Marauder’s Map design 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 MMUGC924

**Brand:** morphing mugs
**Price:** ₩93502
**Availability:** ✅ In Stock

## Summary

> 🧙‍♂️ Sip the Secret, Join the Mischief!

## Quick Answers

- **What is this?** 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 MMUGC924 by morphing mugs
- **How much does it cost?** ₩93502 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/92066284-morphing-mugs-harry-potter-marauders-map-i-solemnly-swear-16)

## 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

- • **Generous 16 oz Capacity:** Perfectly sized for your morning coffee or tea to fuel your day of mischief.
- • **Officially Licensed Wizardry:** Authentic design from Trend Setters Ltd., a trusted name in fandom collectibles.
- • **Reveal the Magic with Every Sip:** Heat-sensitive ceramic unveils the iconic Marauder’s Map when filled with hot liquid.
- • **Hand Wash Recommended for Longevity:** Preserve the magical color-changing effect with gentle care.
- • **Collector’s Dream & Daily Essential:** A stunning display piece that doubles as your go-to mug for home or office.

## Overview

This 16 oz ceramic Morphing Mug features heat-sensitive technology that reveals the full Marauder’s Map design when filled with hot liquid. Officially licensed by Trend Setters Ltd., it combines collectible appeal with practical use. Hand wash only to maintain its color-changing magic. Ideal for fans and professionals who want a touch of wizardry in their daily routine.

## Description

This mug appears to have little secrets to hide, swearing to be up to no good. However, ready your wands (or your hot coffee) and reveal the hidden design! Add hot liquid and watch as the Marauder’s Map is revealed as though you had said the words, “I solemnly swear I am up to no good.” Authentic Morphing Mugs Heat Sensitive Clue Mug This is the real deal. This is the legit Morphing Heat-Sensitive Clue Mug by Trend Setters Ltd. This mug looks great sitting out on display for those who like to show off their collection. Pouring hot liquid enhances the design with a surprise reveal. Perfect for gifting or collecting, drinking or displaying!

Review: Amazing quality product - Great gift, it works beautifully and is large and sturdy. It's recommended by the manufacturer to wash this by hand, I believe that as long as you put it in the top shelf off the dishwasher you should be fine, but if I'm wrong I'll come back here and edit this review.
Review: Coffee mug - Great gift

## Features

- Do you know Hogwarts as well as Moony, Wormtail, Padfoot and Prongs do? If you solemnly swear you are up to no good, then this 16 oz color changing mug is for you!
- At room temperature, this mug appears to only have the Marauder's famous phrase and footprints. Add hot liquid to reveal their charmed map of Hogwarts! Mischief managed.
- 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. Not microwave safe.
- Trend Setters Ltd. creates a variety of officially licensed products from your favorite fandoms as well as hundreds of original designs.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07KQPQQ8G |
| Age Range Description | Adult |
| Best Sellers Rank | #10,984 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #83 in Novelty Coffee Mugs |
| Brand | Morphing Mugs |
| Brand Name | Morphing Mugs |
| Capacity | 16 ounces |
| Color | I Solemnly Swear |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.8 out of 5 stars 4,123 Reviews |
| Included Components | Handle |
| Item Dimensions W x H | 3.5"W x 4.25"H |
| Item Weight | 1.27 Pounds |
| Manufacturer | Trend Setters Ltd. |
| Material | Ceramic |
| Material Features | Ceramic |
| Material Type | Ceramic |
| Number of Items | 1 |
| Occasion | Anniversary, Birthday, Engagement, Wedding |
| Other Special Features of the Product | Color Changing |
| Pattern | Letter Print |
| Product Care Instructions | Hand Wash Only |
| Product Style | Ceramic Mug |
| Recommended Uses For Product | Home |
| Reusability | Reusable |
| Shape | Round |
| Special Feature | Color Changing |
| Specific Uses For Product | Hot Drinks |
| Style | Ceramic Mug |
| Theme | Marauders Map |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Morphing Mugs
- **Color:** I Solemnly Swear
- **Special Feature:** Color Changing
- **Style:** Ceramic Mug
- **Theme:** Marauders Map

## Images

![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 MMUGC924 - Image 1](https://m.media-amazon.com/images/I/61gFI9ZBhPL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Amazing quality product
*by T***Z on December 18, 2025*

Great gift, it works beautifully and is large and sturdy. It's recommended by the manufacturer to wash this by hand, I believe that as long as you put it in the top shelf off the dishwasher you should be fine, but if I'm wrong I'll come back here and edit this review.

### ⭐⭐⭐⭐⭐ Coffee mug
*by O***A on January 21, 2026*

Great gift

### ⭐⭐⭐⭐⭐ Perfect gift for H.P fan !!
*by C***N on January 16, 2025*

My sis and I are big fans of the books and movies, so when I saw this I had to buy it as a gift! It works perfectly! The liquids inside the mug do have to be very hot for the gradient to register through the mug, but honestly, rinsing the outside with warm/hot water works too in uncovering the gradient. The mug size is not too small and holds a good amount of liquids for morning coffee and other hot drinks; the handle is comfortable to grasp too. Overall would definitely recommend, it's worth the buy if you're a fan :]

## Frequently Bought Together

- 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
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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-27*