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Deal.ai › LEGO
Lego
Lego Ideas Floating Sea Otters

Lego Ideas Floating Sea Otters

5(2 ratings)

Best price now

$109.00at eBayChecked 15 h ago

Compared across 18 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission.

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Price facts

  • Lowest price today: $109.00 at eBay (checked Nov 9, 2026).
  • Checked at 18 stores.

Our take on the Lego Ideas Floating Sea Otters

LEGO Ideas Floating Sea Otters (21366) is a 1,234-piece build-and-display set for adults, designed by a fan and chosen by LEGO fans. It builds a mother sea otter floating on her back with a removable pup that sits on her belly, plus a buildable clam. The head, mouth, arms and flippers are poseable, so you can change the display. At about 11.5 inches wide it is a shelf or desk piece rather than a large model. It suits adult animal lovers and display builders more than play-focused buyers, and it is a gentler, smaller build than big LEGO Ideas showpieces.

Best forAdult LEGO builders who like animal modelsSea otter and wildlife fansDesk or shelf decorA gift for a LEGO-collecting adult
Pros
  • Poseable head, mouth, arms and flippers
  • Removable pup that sits on the mother's belly
  • Buildable clam adds a second display look
  • Fan-designed LEGO Ideas set
  • 3D instructions in the LEGO Builder app
Cons
  • Ages 18+ label, so it is not aimed at kids
  • Small finished size for 1,234 pieces
  • Mostly display value, little play value
  • Limited reception so far, with only a couple of buyer ratings

Lego Ideas Floating Sea Otters prices at every store

  • Best BuyNew

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    $119.99Free shippingChecked 1 h ago
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  • WalmartNew

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    $119.99Free shippingChecked 15 h ago
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  • TargetNew

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  • LEGO.comNew

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  • Barnes & NobleNew

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  • Bass Pro ShopsNew

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  • Cabela'sNew

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  • HobbyTownNew

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  • Dancing Bear ToysNew

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  • selfridges.comNew

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    $121.00Checked 15 h ago
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  • GiltNew

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    $109.99+ $11.99 shippingChecked 18 min ago
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  • LegoNew

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    $119.99+ $4.95 shippingChecked 18 min ago
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  • DoorDashNew

    In stockSold by Best Buy US

    $119.99+ $5.99 shippingChecked 15 h ago
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  • Books A MillionNew

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    $129.99+ $7.00 shippingChecked 15 h ago
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  • BooksamillionNew

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    $129.99+ $7.98 shippingChecked 18 min ago
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  • eBayPre-owned

    Availability unknownReturns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $75.00+ $7.13 shippingChecked 15 h ago
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  • eBayNew

    Availability unknownReturns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $109.00Free shippingChecked 15 h ago
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  • AmazonNew

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    $119.99Free shippingChecked 15 h ago
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Lego Ideas Floating Sea Otters price history

$109.99$109.99
Nov 9Nov 10

Lowest price we've seen: $109.99 on Nov 9 at Gilt. Tracked across 17 stores since Nov 9.

What reviewers say

Owners describe it as a cute, satisfying adult build and a good display piece.

What people mention
  • DisplayPraisedOwners treat it as a decor piece and like how the otter looks on display.
  • BuildPraisedBuyers describe the build as a fun, immersive activity for adults.
  • PoseabilityPraisedThe moveable head, mouth, arms and flippers let owners change the pose.

From Best Buy

  • Build a mother sea otter relaxing in water with a removable brick-built pup figure
  • Pose the mother otter's head, mouth, arms and flippers, and place the pup on her belly
  • Display mama with the buildable clam for a different look
  • Part of the LEGO Ideas collection, created by a fan designer and voted for by LEGO fans
  • Use the LEGO Builder app for 3D instructions, zooming, rotating and progress tracking
  • A build-and-display gift for animal lovers and creative adults
Materials
Plastic
In the box
1,234-piece LEGO Ideas Floating Sea Otters set (21366), Removable brick-built pup figure, Buildable clam

About the Lego Ideas Floating Sea Otters

Max out the cuteness of your home decor with the LEGO Ideas Floating Sea Otters craft kit (21366) for adults. Create an adorable brick-built model of a mother sea otter relaxing in water with her pup. Place the little pup figure on its mama’s belly. Pose mama’s head, mouth, flippers and claws. And change up your sea animals showpiece by giving mama the buildable clam. The original design for this set was created by a fan designer and voted for by LEGO fans. It offers a joyful, immersive activity for adults, whether you’re new to LEGO sets or a more experienced builder. And you can enjoy enhanced building with the LEGO Builder app, zooming and rotating using 3D instructions, while saving and tracking your progress. A fun gift for animal lovers, this set contains 1,234 pieces.

What buyers say

Buyers like
  • Rated 5 out of 5 stars from 2 reviews

Specifications

Piece count
1,234 piecesSource
Height
over 3 in. (8 cm)Source
Width
11.5 in. (30 cm)Source
Depth
7.5 in. (19 cm)Source
App instructions

Questions and answers

Is this set good for kids?
No. LEGO labels it for ages 18 and up, and it is designed as a build-and-display model for adults. The small pieces and display focus make it a poor fit for young children.
How big is the finished otter?
It is about 11.5 inches wide, 7.5 inches deep and just over 3 inches tall. That fits a shelf, desk or mantel.
Can the pup be removed?
Yes. The pup is a separate brick-built figure, so you can lift it off the mother's belly or place it back on.
Does it need batteries or an app?
No batteries. The LEGO Builder app is optional and gives 3D instructions you can zoom and rotate, plus progress tracking.
What is in the box?
The 1,234-piece set, a removable brick-built pup and a buildable clam. The mother otter is the main model.
Is it hard to build?
It is a moderate adult build at 1,234 pieces, with no motors or electronics. The app instructions help if you prefer step-by-step 3D views.
Where is the Lego Ideas Floating Sea Otters cheapest?
At eBay, for $109.00, as of our latest check.
What do buyers say about the Lego Ideas Floating Sea Otters?
Rated 5 out of 5 from 2 ratings. Buyers like: Rated 5 out of 5 stars from 2 reviews.
Where can I buy the Lego Ideas Floating Sea Otters?
18 stores we checked sell it, including Gilt, Lego, Booksamillion, Best Buy, Walmart.

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LEGO Builder app with 3D building instructions
Source
Figures included
mother otter and removable brick-built pup figureSource
Poseable parts
head, mouth, arms and flippersSource
Accessory
buildable clamSource
Product line
LEGO IdeasSource
Set number
21366Source
Minimum Age
Ages 18 years and up
Number Of Pieces
1,234 pieces
Brand
LEGO
Model Number
6589579
Series
Ideas
Number Of Pieces Included
1234
Material
Plastic
Recommended Minimum Age
18 years
Brand/Character
LEGO