How many pieces does the LEGO Costume Party with Unicorn & Fairy (42661-1) have?

The LEGO Costume Party with Unicorn & Fairy set (42661-1) contains 262 pieces. It was released in 2025 as part of the LEGO Friends theme.

How can I find missing parts for LEGO set 42661-1?

On BrickMissing you can check which parts from the LEGO Costume Party with Unicorn & Fairy (42661-1) you already own. Add your LEGO collection and we'll show exactly which of the 262 pieces you're missing and which you already have.

Can I build the LEGO Costume Party with Unicorn & Fairy with parts I already have?

Use BrickMissing's free parts checker to find out. Add LEGO sets you own to your collection and we'll cross-reference all 262 parts to show your buildability percentage and which specific pieces you still need.

What theme is the LEGO Costume Party with Unicorn & Fairy from?

The LEGO Costume Party with Unicorn & Fairy (42661-1) belongs to the LEGO Friends theme. You can browse all Friends sets on BrickMissing to find more sets from this theme.

Costume Party with Unicorn & Fairy - View 9

Costume Party with Unicorn & Fairy

🏷️ 42661-1•🎨 Friends•📅 2025•🧱 262 parts•Intermediate

Step into a world of friendship and imagination with the LEGO Friends Costume Party with Unicorn & Fairy (42661). This set is packed with storytelling inspiration for engaging role-play. Join Autumn as a bumblebee and Olly as a merman, ready for fun. Churro the cat, dressed as a magician, even has Leo as his white bunny assistant. Paisley shines in her fairy costume, while Periwinkle the horse transforms into a magnificent unicorn. The friends gather for an unforgettable party featuring a stage, DJ booth, and delicious snacks. Capture every moment at the photo booth, complete with exciting accessories for endless posing. Discover more adventures in the LEGO Friends universe.

Parts Inventory

🧱 262 parts

Part	Color	Qty
Sticker Sheet for Set 42661-1 10112472	Unknown	1×
Headwear Accessory Bow with Heart, Long Ribbon and Pin 11618	Red	1×
Plate Special 1 x 2 with 5.9mm Centre Side Towball 14417	Dark Bluish Gray	1×
Tile Round 2 x 2 with Vinyl Record, Bright Light Orange Center, Magenta Music Note print 14769pr1252	Black	1×
Brick Round 2 x 2 Dome Bottom [Open Stud] 15395	Bright Pink	2×
Brick Round 2 x 2 Dome Bottom [Open Stud] 15395	Medium Azure	2×
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) 15573	Medium Azure	8×
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) 15573	White	1×
Tile Round 1 x 2 Half Circle 1748	Medium Azure	1×
Tile 4 x 4 1751	Black	1×

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Brick Round 2 x 2 Dome Bottom [Open Stud]	15395	Medium Azure	2×
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)	15573	Medium Azure	8×
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)	15573	White	1×
Tile Round 1 x 2 Half Circle	1748	Medium Azure	1×
Tile 4 x 4	1751	Black	1×
Plate Special Round 2 x 2 with Center Stud (Jumper Plate)	18674	Dark Pink	1×
Plate Round Corners 2 x 6 Double	18980	Medium Azure	1×
Plate Round Corners 2 x 6 Double	18980	Vibrant Yellow	1×
Creature Body Part, Wing 4 x 7 Right with Feathers and Handles for Clips	20312	Flat Silver	1×
Creature Body Part, Wing 4 x 7 Left with Feathers and Handles for Clips	20313	Flat Silver	1×
Tile Round 1 x 1 with Hollow Bar	20482	Bright Pink	4×
Tile Round 1 x 1 with Hollow Bar	20482	Yellowish Green	8×
Tile Round 1 x 1 with Hollow Bar	20482	Bright Light Orange	2×
Tile Round 1 x 1 with Hollow Bar	20482	Black	1×
Plant, Cherries	22667	Red	1×
Bar Holder with Hole and Bar Handle	23443	White	4×
Tile Round 1 x 1 Half Circle	24246	Medium Azure	6×
Tile Round 1 x 1 Half Circle	24246	Dark Purple	6×
Tile Round 1 x 1 Quarter	25269	White	2×
Plate Special 1 x 2 Side Handle [Free Ends]	2540	White	1×
Antenna 8H Whip	2569	Trans-Dark Pink	4×
Animal, Cat, Chubby with Olive Green Eyes, Orange Fur, Black Mustache print	2652pr0006	White	1×
Tile 2 x 3	26603	Medium Azure	1×
Tile 4 x 4 Curved, Macaroni	27507	Coral	2×
Tile 2 x 2 Curved, Macaroni	27925	Bright Green	2×
Lever Small Base with Black Lever	298c02	White	1×
Brick Curved 2 x 2, Two Top Studs	30165	White	1×
Plate 2 x 3	3021	Light Aqua	1×
Plate 2 x 2	3022	White	1×
Plate 2 x 2	3022	Dark Orange	1×
Plate 1 x 2	3023	Vibrant Yellow	4×
Plate 1 x 2	3023	White	2×
Plate 1 x 2	3023	Coral	2×
Plate 1 x 2	3023	Dark Azure	2×
Plate 4 x 12	3029	White	1×
Plate 4 x 6	3032	White	1×
Bar 4L (Lightsaber Blade / Wand)	30374	Trans-Light Blue	2×
Bar 4L (Lightsaber Blade / Wand)	30374	Trans-Dark Pink	2×
Brick 1 x 2 without Bottom Tube	3065	Trans-Orange	1×
Brick 1 x 2 without Bottom Tube	3065	Trans-Dark Pink	1×
Brick 1 x 2 without Bottom Tube	3065	Trans-Bright Green	1×
Tile 2 x 2 with Groove	3068b	Black	1×
Tile 1 x 2 with Groove	3069b	Bright Green	3×
Tile 1 x 2 with Groove	3069b	Orange	1×
Tile 1 x 2 with Groove	3069b	Bright Pink	5×
Brick Round 2 x 2 Dome Top, Vented Stud	3262	Bright Pink	2×
Brick Round 2 x 2 Dome Top, Vented Stud	3262	Medium Azure	2×
Slope Curved 2 x 2 x 2/3 Inverted	32803	White	1×
Slope Curved 2 x 2 x 2/3 Inverted	32803	Bright Green	2×
Plate Round 1 x 1 with Hollow Stud and Horizontal Bar 1L	32828	Light Bluish Gray	4×
Plant, Carrot	33172	Orange	1×
Plant, Carrot Top	33183	Lime	1×
Plate 1 x 8	3460	Bright Pink	1×
Tile Special 1 x 3 Inverted with Center Hole	35459	White	4×
Plate Special 3 x 5 Cloud with 3 Center Studs	35470	White	2×
Brick 1 x 3	3622	Light Aqua	1×
Plate 1 x 6	3666	Dark Purple	2×
Plate 1 x 6	3666	Vibrant Yellow	2×
Plate 1 x 4	3710	White	2×
Plate 2 x 6	3795	Vibrant Yellow	5×
Plate 2 x 6	3795	Medium Azure	1×
Plate 2 x 10	3832	Bright Green	1×
Equipment Cup / Teacup Saucer with Recessed Stud on Top [PLAIN]	38799	White	1×
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)	4032a	Yellow	1×
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)	4032a	Orange	1×
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)	4032a	Bright Green	1×
Hair Scruffy and Swept Right	40938	Reddish Brown	1×
Bracket 2 x 2 with 1 x 2 Vertical Studs	41682	White	4×
Bracket 2 x 2 with 1 x 2 Vertical Studs	41682	Dark Azure	4×
Plate 8 x 8 with Rounded End	41948	Medium Azure	1×
Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised - Updated Version	4304	Light Aqua	6×
Dish 2 x 2 Inverted [Radar]	4740	Trans-Bright Green	2×
Plate Special 1 x 2 [Side Handle Closed Ends]	48336	Medium Azure	2×
Plate Round 1 x 1 with Hollow Stud and Underside Clip	5264	Black	4×
Plate Round 1 x 1 Swirled Top / Poo	53119	Lavender	1×
Cone 1 x 1 [Top Groove]	59900	Trans-Orange	1×
Cone 1 x 1 [Top Groove]	59900	Trans-Bright Green	1×
Cone 1 x 1 [Top Groove]	59900	Trans-Dark Pink	1×
Plate Special 1 x 2 with Clips Horizontal [Open O Clips]	60470b	White	2×
Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip]	60897	Medium Azure	6×
Equipment Magic Wand	6124	Trans-Dark Pink	1×
Plate Special 1 x 1 with Clip Horizontal [Thick Open O Clip]	61252	Dark Purple	4×
Plate Round 1 x 1 with Solid Stud	6141	Opal Trans-Clear	1×
Plate Round 1 x 1 with Solid Stud	6141	Light Aqua	2×
Plate Round 1 x 1 with Solid Stud	6141	Medium Azure	2×
Tile 1 x 3	63864	Medium Azure	2×
Bar, Angled with 1 x 1 Round Plate / Stud on End	65578	Trans-Clear	6×
Tile 1 x 6 with Groove	6636	Medium Azure	2×
Plant, Sunflower 2 x 2 with 16 Petals	6901	Yellow	1×
Animal, Horse with Raised Leg, Dark Pink Mane and Tail, Dark Azure Eyes print	69830pr0008	White	1×
Creature Body Part, Horn (Unicorn) with Small Pin	7199	Opal Trans-Clear	1×
Top Hat with Pin and Anti-Stud	77108	Black	1×
Plate Special 1 x 2 with Clip Vertical on End	78256	Medium Azure	2×
Tile 3 x 3 Curved, Macaroni	79393	Vibrant Yellow	2×
Food Cupcake with Stud	79743	Light Aqua	1×
Brick Round Corner 2 x 2 Macaroni with Stud Notch and Reinforced Underside [New Style]	85080	Medium Azure	4×
Plate Round 1 x 1 with Open Stud	85861	Dark Pink	1×
Brick Special 1 x 1 with Stud on 1 Side	87087	Orange	1×
Brick Special 1 x 1 with Stud on 1 Side	87087	Bright Green	1×
Brick Special 1 x 1 with Stud on 1 Side	87087	Bright Pink	1×
Panel 1 x 2 x 2 [Side Supports / Hollow Studs]	87552	Medium Azure	1×
Plate Special 2 x 2 with Groove and Center Stud (Jumper)	87580	Coral	2×
Plate Special 2 x 2 with Groove and Center Stud (Jumper)	87580	Bright Pink	10×
Plate Special 2 x 2 with Groove and Center Stud (Jumper)	87580	Medium Azure	3×
Bar 3L	87994	Dark Green	1×
Plate Special 1 x 2 with Bar Up [Horizontal Arm 5mm]	88072	Light Bluish Gray	2×
Weapon Trident	92290	Pearl Gold	1×
Slope Curved 4 x 1 Double with No Studs	93273	White	1×
Tile Round 1 x 1	98138	Dark Brown	1×
Tile Round 1 x 1 with Pink Donut print	98138pr0090	Medium Nougat	2×
Tile Round 1 x 1 with Christmas Cookie print	98138pr0255	Tan	2×
Headwear Accessory Antenna	6899	Black	1×
Minidoll Hips and Layered Skirt with Black Boots, Yellow Legs, Laces print	36178c01pr0002	Black	1×
Hair Long, Thick Braid	3201	Dark Orange	1×
Plant, Flower with 5 Pointed Petals and Pin	18853	Light Aqua	1×
Minidoll Head with Dark Orange Eyebrows, Black Fly Goggle print	92198pr0073	Light Nougat	1×
Minidoll Torso with Left Limb Reduction, Light Nougat Arms and Hand with Black/Yellow Striped Top (Bee) print	100811c01pr0007	Light Nougat	1×
Foil Sheet for Set 42661-1 - Insect Wings	10112446b	Unknown	1×
Minidoll Head Thick Black Eyebrows, Reddish Brown Eyes, Smile print	92198pr0335	Medium Nougat	1×
Minidoll Torso Boy with Medium Nougat Arms and Hands with White/Lime Vest, Bright Green Suspenders with Carrots, Dark Pink Shirt print	11408c02pr0015	Medium Nougat	1×
Costume / Mask, Rabbit / Bunny Ears [Plain]	99244	White	1×
Minidoll Hips and Trousers with Back Pockets [Thin Hinge]	2277c01	White	1×
Hair, Short Pointy, Wavy in Front	2631	Red	1×
Minidoll Hips and Fishtail (Mermaid) with Satin Trans-Light Blue Tail print	16530c01pr0005	Medium Azure	1×
Minidoll Neckwear, Pointed Shoulder Pads	5106	Pearl Gold	1×
Minidoll Head Purple Glasses, Dark Turquoise Eyes, Open Mouth Smile	92198pr0358	Warm Tan	1×
Minidoll Torso Boy with Warm Tan Arms and Hands with Light Aqua Shrt, Gold Belt, Star, Shells On Necklace print	11408c07pr0011	Warm Tan	1×
Minidoll Hips and Mid-Length Shorts with Light Nougat Legs, Lavender Sandals print	2241c01pr0030	Bright Pink	1×
Hair, Long Weavy, Tail	6977	Dark Red	1×
Minidoll Head Dark Red Eyebrows, Bright Pink Eyeshadow, Bright Light Blue Eyes, Crooked Smile	92198pr0071	Light Nougat	1×
Minidoll Torso Girl with Light Nougat Arms and Hands with Lavender Dress, Flowers, Dark Blue Trim, Silver Necklace print	92456c01pr0130	Light Nougat	1×
Foil Sheet for Set 42661-1 - Fairy/Butterfly Wings	10112446a	Unknown	1×
Headwear Accessory Crown / Tiara	33322	Pearl Gold	1×

Build DNA

Parts inventory insights for Costume Party with Unicorn & Fairy

262 pieces puts this build -14% against the average Friends set and -59% against the average 2025 release.

LEGOFRIENDS

Vs average Friends set

-14%-44 parts

This set262

Average set306

Average Friends set: 306 pieces across 539 other sets.

Vs average 2025 set

-59%-376 parts

This set262

Average set638

Average 2025 set: 638 pieces across 561 other sets.

Color profile

39different colors

Dominant color

Medium Azure

Medium Azure48x

18%

White36x

14%

Bright Pink26x

10%

Vibrant Yellow14x

Unique parts

2.4 pieces per unique type

107

Repeat factor

Average pieces per unique type.

Most used part

Tile Round 1 x 1 with Hollow Bar

15x

Results are based on official LEGO part inventories. Accuracy improves as you confirm set completeness.

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Build Insights🧩107unique parts🎨39different colors📊6.7avg. parts per color🏆15×Tile Round 1 x 1 with Hollow Bar

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