LEGO 21366
Floating Sea Otters

LEGO 21366 Floating Sea Otters box image
Set number
21366
Theme
LEGO Ideas and CUUSOO
Pieces
1,234 pcs
Year
2026
Used & parts
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“Floating Sea Otters” is LEGO® “LEGO Ideas and CUUSOO” theme set number 21366. Released in 2026, it has 1,234 pieces. With Re:GO you can automatically work out what percentage of this set you can build from the LEGO parts you already own, along with the missing parts and an estimated cost. Use the links below to compare prices on Amazon, Rakuten, Yahoo! Shopping, Mercari and Yahoo! Auctions, and find the best deal on new, used, or individual parts.

Part breakdown 287 types

Color split (most first)
Reddish Brown×326
Black×244
Trans-Light Blue×161
Tan×137
Dark Turquoise×75
Light Bluish Gray×63
Yellow×40
Dark Bluish Gray×36
Dark Tan×23
White×22
Olive Green×22
Dark Brown×15
Main parts (most used first)
2431 Tile 1 x 4 with Groove
Trans-Light Blue · ×59
3069b Tile 1 x 2 with Groove
Trans-Light Blue · ×27
29119 Slope Curved 2 x 1 with Stud Notch Right
Reddish Brown · ×25
15068 Slope Curved 2 x 2 x 2/3
Reddish Brown · ×22
22667 Plant, Cherries
Olive Green · ×22
4190 Plate Special 2 x 2 with Double Inverted Curve, 1 Stud
Trans-Light Blue · ×18
35480 Plate Special 1 x 2 Rounded with 2 Open Studs
Yellow · ×17
32064a Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin
Light Bluish Gray · ×16
85861 Plate Round 1 x 1 with Open Stud
Trans-Light Blue · ×16
35480 Plate Special 1 x 2 Rounded with 2 Open Studs
Dark Bluish Gray · ×14
11477 Slope Curved 2 x 1 No Studs [1/2 Bow]
Reddish Brown · ×13
3024 Plate 1 x 1
Reddish Brown · ×13
85984 Slope 30° 1 x 2 x 2/3
Reddish Brown · ×13
3020 Plate 2 x 4
Dark Turquoise · ×12
3022 Plate 2 x 2
Black · ×12
3070b Tile 1 x 1 with Groove
Trans-Light Blue · ×12
3623 Plate 1 x 3
Reddish Brown · ×12
3710 Plate 1 x 4
Tan · ×12
3941 Brick Round 2 x 2 with Axle Hole
Yellow · ×12
4477 Plate 1 x 10
Black · ×12
2423 Plant, Leaves 4 x 3
Dark Green · ×11
3021 Plate 2 x 3
Reddish Brown · ×11
3386 Plate 1 x 1 x 2/3 Half Round with Side Stud
Light Bluish Gray · ×10
43722 Wedge Plate 3 x 2 Right
Black · ×10

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