---
product_id: 285400223
title: "Morphing Mugs Harry Potter - Marauders Map - I Solemnly Swear – 16 oz Large Ceramic Heat Sensitive Clue Mug – Full image revealed when HOT liquid is added"
brand: "morphing mugs"
price: "€ 62.44"
currency: EUR
in_stock: true
reviews_count: 5
category: "Morphing Mugs"
url: https://www.desertcart.pt/products/285400223-morphing-mugs-harry-potter-marauders-map-i-solemnly-swear-16
store_origin: PT
region: Portugal
---

# 16 oz large ceramic capacity Heat-activated color reveal Durable black ceramic build Morphing Mugs Harry Potter - Marauders Map - I Solemnly Swear – 16 oz Large Ceramic Heat Sensitive Clue Mug – Full image revealed when HOT liquid is added

**Brand:** morphing mugs
**Price:** € 62.44
**Availability:** ✅ In Stock

## Summary

> 🪄 Sip the magic, reveal the mischief!

## Quick Answers

- **What is this?** Morphing Mugs Harry Potter - Marauders Map - I Solemnly Swear – 16 oz Large Ceramic Heat Sensitive Clue Mug – Full image revealed when HOT liquid is added by morphing mugs
- **How much does it cost?** € 62.44 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/285400223-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

- • **Magic in Every Sip:** Watch the Marauder’s Map appear with your hot drink—instant wizardry at your desk.
- • **Collector’s Dream:** Officially licensed Harry Potter design that doubles as a conversation-starting display piece.
- • **Hand Wash Recommended:** Preserve the spellbinding heat-sensitive magic with gentle care—because true magic lasts.
- • **Generous 16 oz Capacity:** Fuel your day with a large, satisfying pour that keeps you going through meetings and brainstorms.
- • **Perfect Gift for Potterheads:** Impress your fellow fans with a unique, enchanting mug that’s as functional as it is magical.

## Overview

This 16 oz Morphing Mugs ceramic mug features heat-sensitive technology that reveals the iconic Marauder’s Map when filled with hot liquid. Crafted from durable black ceramic, it’s officially licensed and designed in the USA. Ideal for Harry Potter fans who want a functional collectible that transforms with every warm sip.

## 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: المنتج الذي وصلني غير صحيح وفير مطابق للطلب !!!
Review: Meine Freundin liebt die Kanne!

## 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. This product was designed and printed in the USA.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07KQPQQ8G |
| Best Sellers Rank | #98,533 in Kitchen ( See Top 100 in Kitchen ) #2,682 in Coffee Cups & Mugs |
| Brand | Morphing Mugs |
| Capacity | 454 g |
| Color | Black |
| Customer Reviews | 4.8 4.8 out of 5 stars (3,786) |
| Date First Available | 4 December 2018 |
| Item Weight | 576 g |
| Material | Ceramic |
| Model Number | MMUGC924 |
| Product Dimensions | 8.89 x 8.89 x 10.8 cm; 576.06 g |
| Special Features | Microwave Safe |

## Product Details

- **Brand:** Morphing Mugs
- **Capacity:** 454 g
- **Colour:** Black
- **Material:** Ceramic
- **Special features:** Microwave Safe

## Images

![Morphing Mugs Harry Potter - Marauders Map - I Solemnly Swear – 16 oz Large Ceramic Heat Sensitive Clue Mug – Full image revealed when HOT liquid is added - Image 1](https://m.media-amazon.com/images/I/61gFI9ZBhPL.jpg)

## Customer Reviews

### ⭐ Review
*by س***د on 1 November 2021*

المنتج الذي وصلني غير صحيح وفير مطابق للطلب !!!

### ⭐⭐⭐⭐⭐ Review
*by A***X on 4 February 2025*

Meine Freundin liebt die Kanne!

### ⭐⭐⭐⭐⭐ Review
*by N***R on 2 January 2025*

good item was great gift

## 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 Portugal*
*Store origin: PT*
*Last updated: 2026-03-17*