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LEGO Harry Potter Hogwarts: Polyjuice Potion Mistake 76386 Moaning Myrtle's Bathroom with Ron Weasley and Hermione Grainger Minifigures, Gift Idea for Grandchildren with Golden Harry Potter Minifigure

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Availability: Only 1 left in stock, order soon!
Fulfilled by Amazon
Arrives Aug 12 – Aug 28
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Features

  • Features a buildable Moaning Myrtle's bathroom famous scene to practice Harry Potter potion spells, with lots of authentic accessories
  • Kids transform favorite Harry Potter characters into Vincent Crabbe & Gregory Goyle, but sometimes magic fails and Hermione becomes a cat
  • Kids turn Harry, Hermione & Ron minifigures heads to reveal an alternative face, add a different hairpiece, and the transformation is done!
  • Includes Harry Potter, Hermione Granger and Ron Weasley minifigures, and 2 random wizard card tiles for kids to collect (out of 16 in total)
  • This LEGO Harry Potter toy for boys and girls makes a great gift idea for grandchildren and includes an exclusive, golden Harry Potter minifigure to celebrate 20 years of Harry's magic
  • This toy is one of a series of detailed modular sets that can be built, combined & rearranged to create kids' own Hogwarts Castle model

Description

LEGO Harry Potter Hogwarts: Polyjuice Potion Mistake (76386) castle building set inspires magical adventures in the Hogwarts bathroom involving Harry Potter potions. Young witches and wizards join Harry Potter, Ron Weasley and Hermione Granger as they brew powerful Polyjuice potion. Drinking it transforms the characters into Vincent Crabbe and Gregory Goyle, which kids achieve by turning the minifigures’ heads to reveal an alternative face and adding a different hairpiece. The magic can go awry, however, such as when Hermione transforms into a cat! There are other surprises too: an exclusive, 20th anniversary golden Harry Potter minifigure; 2 random wizard card tiles to collect; and a secret tunnel beneath the sink. When this toy set for boys and girls is combined with LEGO Harry Potter Hogwarts Chamber of Secrets (76389), the secret tunnel connects the 2 rooms, expanding the play possibilities even further. This magical, modular system lets kids continue adding rooms to create an entire Hogwarts Castle model. The set measures over 3 in. (8 cm) high, 5 in. (12 cm) wide and 2.5 in. (6 cm) deep and makes a great gift for grandchildren. Contains 217 pieces.

Brand Name: LEGO


Included Components: LEGO Building Elements


Age Range Description: Adult


character: Harry Potter;Hermione Granger;Ron Weasley;Anniversary Harry Potter;Vincent Crabbe;Gregory Goyle


Sub Brand: Harry Potter


UPC: 673419339735


Global Trade Identification Number: 35


Is Assembly Required: No


Manufacturer Maximum Age (MONTHS): 1200.0


Manufacturer Minimum Age (MONTHS): 84


Model Number: 6332781


Manufacturer Part Number: 6332781


Item Type Name: Building Kit


Manufacturer: LEGO


Size: One Size


Item Dimensions: 10.32 x 5.55 x 2.84 inches


Item Weight: 0.71 Pounds


Number of Pieces: 217


Color: Multicolor


Theme: Harry Potter


Material Type: Plastic


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Aug 12 – Aug 28

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Harry's at it again with Lego magic
This small Harry Potter set is an absolute delight for any Harry Potter fan. The display of pretend potions in bottles is fantastically simple, capturing the magical essence of the movies. The inclusion of cool gold pieces adds an extra layer of charm and sophistication. It's an excellent value, especially with the character mini-figures that bring the whole scene to life. Building and displaying this set is a fun and engaging experience, making it a must-have for both kids and adults who love the wizarding world. Highly recommend it for its magical appeal. ... show more
Reviewed in the United States on February 17, 2025 by Critic
    • Cool set piece
Adorable playset for Harry Potter lovers
Reviewed in the United States on December 5, 2025 by Kindle Customer
    • Awesome Product
Lego Products on Amazon are cheaper than the stores. This is a great product and my grandson loved putting it together.
Reviewed in the United States on August 16, 2025 by Vickie L Holmes
    • Lego
It's a cute lego
Reviewed in the United States on May 8, 2026 by W
    • Amazing Amazing
Review Image by Amazon Customer
An amazing Lego set! Simple and easy to make. Came in good quality with all the pieces. It was a little smaller than expected but still great! It really brings the scene from the books and movie to life! I would recommend
Reviewed in the United States on June 8, 2025 Reviewed in the United States on June 8, 2025 by Amazon Customer
    • Fun and Enjoyable Set
Our family likes Lego sets. We do try to get Lego sets that have some challenge and difficulty during construction, so there is some thinking and instruction following skills used. This Harry Potter Polyjuice Potion Mistake Set is a smaller set, yet contains some fun and hidden elements that will please almost all Lego and Harry Potter fans. It is a fairly easy set to assemble, with easy to follow and well mapped instructions. There are a good number of minifigures in this set, which makes it even more valuable to a Lego fan and collector. This set also can be built into other Harry Potter Sets, to make it part of one of Harry Potter's famous school buildings. It's a fun and not overly complicated set to assemble, with hours of fun play afterward. ... show more
Reviewed in the United States on January 27, 2023 by chuckiedee22
    • Awesome but small
Great gift! It was amazing, very easy to build and also very fun too to play after. I highly recommend this set, and this would go nicely with other Chamber of Secret Harry Potter sets. Only reason I rated 4 out of 5 was because i'm pretty sure it was missing a piece, and a bit small, but overall, very good. The package was not damaged, and everything was packaged nicely. I think 20$ is a bit too expensive for a small set like this, but it was pretty much worth it. ... show more
Reviewed in the United States on June 9, 2024 by Laxmi Hegde
    • El regalo perfecto para un fan
Mi sobrina lo amo.
Reviewed in the United States on January 26, 2026 by Joshebeth Ortega

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