Beginner
≈ 1 h 30 minSuggested range45 min – 2 h 15 min
Official LEGO® image · © LEGO Group and/or the respective rights holders. Source: LEGO Italy ↗
Friends · SET 42661
Costume Party with Unicorn & Fairy
A costume party brings friends, animals and little accessories together. Short, separate builds suit sharing, although our estimate remains for one person.
- Pieces
- 261
- Release year
- 2025
- Theme
- Friends
- Set number
- 42661
- LEGO recommended age
- 6+
- LEGO retail price · Italy
- 39.99 €
Available at LEGO Italy when checked on 23 October 2026. Availability can change. Check the store for the latest information.
Retail price reported by the LEGO source for the stated market. Check the store for current price and availability; this does not establish the launch price. LEGO ↗ · Reference checked on 23 October 2026
Official English name verified at: LEGO English catalogue ↗ · Checked on 24 October 2026.
TIME TO BUILD
How long does it take to build Costume Party with Unicorn & Fairy?
A starting point for planning your build. Times for each experience level are editorial estimates, not measurements submitted by HowLongToBuild users.
Editorial model estimate · no verified measured building time
Intermediate
≈ 1 hSuggested range30 min – 1 h 30 minExperienced
≈ 45 minSuggested range15 min – 1 h 15 minBased on one person building the set for the first time, following the original instructions and using numbered bags where supplied. Includes normal piece-finding and minor adjustments; excludes long breaks, filming, dismantling and modifications. Sources may use different methods. This range is neither a statistical interval nor a limit: your build may take less or more time.
How we estimate times · sources and method
A simple setting with small accessories. The solo estimate covers every build and character. The three central durations are model-specific editorial assessments. Planning ranges extend approximately from 65% to 145%, rounded to quarter-hours; they are not measured experience-level averages or guaranteed limits.
Sources do not always specify the builder’s experience. The three experience bands are our editorial assessment, based on the complexity of the set and individual accounts where available.
- LEGO Italy · Costume Party with Unicorn & Fairy ↗
This source documents the model’s features and components, not a timed build. No sufficiently verifiable individual building-time report has been identified for this set.
- LEGO building instructions · Costume Party with Unicorn & Fairy ↗
Set-specific instructions checked against the set number, piece count and year. The duration is an editorial assessment based on piece count, construction type, mechanisms and detail.
Checked: 23 ottobre 2026 · Method v1.0 · Limited reports; not a statistical average.
BUILT BY THE COMMUNITY
Yours could be the first building time.
0 reviewed solo building times.
No solo building times have been reviewed yet. You can still find editorial estimates under Suggested times.
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How much display space does it need?
Model or component measured by LEGO
- Height
- ≈ 8 cm
- Width
- ≈ 25 cm
- Depth / length
- ≈ 5 cm
These measurements refer to the model or component in the original specification below. Other builds, poses or arrangements may need additional space.
Check your shelf space
Which model was measured? · original Italian specification
Dimensioni: set di 261 pezzi con un modello principale che misura 8 cm di altezza, 25 cm di larghezza e 5 cm di profonditàApproximate assembled-model measurements, not packaging dimensions. Allow extra room for handling, moving parts and the display stand. The comparison uses the measured model’s overall footprint, allows a 90° rotation and does not assess stability or shelf load. Source LEGO ↗ · 2026-10-29
BEYOND THE BRICKS
Did you know?
Inside the set
Costumes for everyone
Autumn is an insect, Olly a merman, Leo a rabbit and Paisley a fairy. The animals dress up too.
LEGO sourceFour friends
Four mini-dolls are accompanied by a cat, horse and party accessories.
LEGO sourceBeyond the set
The stories, places and inventions behind your build.
A buzz that releases pollen
Bumblebees can vibrate their flight muscles to release pollen from certain flowers, a process known as buzz pollination.
Read the full story
Bumblebees contract flight muscles to vibrate pollen loose from flowers that retain it tightly. They comb much of it from their fur into hind-leg baskets. The buzz accompanies a collecting mechanism, beyond simply being the sound of an insect passing a flower.
Tomatoes benefit too
Tomatoes, blueberries and aubergines are among the plants that benefit from this form of pollination.
Read the full story
The trust lists tomatoes, blueberries, aubergines and kiwis among buzz-pollinated plants. Loose pollen remaining on the bee reaches later flowers. Food gathering and plant reproduction meet within the same behaviour, connecting a small insect’s activity with familiar ingredients in human diets.
Expanded stories updated on 29 October 2026
Written by HowLongToBuild · Sources are linked with each story · Checked on 23 October 2026. Historical facts and story details refer to the context described.
BEYOND THE BRICKS
Keep the story going
Films, series, games, books and music connected to this model or its universe.
LEGO Friends: The Next Chapter
Another adventure in the same universe, for before or after your build.
Title search on JustWatch: choose the result matching the title and year above.Streaming: Italian catalogue. Check availability, languages and terms on the external service. Searches are labelled; book results may include different editions.
Suggest a work or report a wrong connection →THE COMMUNITY’S EXPERIENCE
What was it like to build?
Three separate scores from 1 to 10. For difficulty, 1 means very easy and 10 means very difficult.
No approved ratings yet. Scores are never generated by this site or inferred from the recommended age.
Rate this set · no account needed
Building tips from the community
Specific steps, useful checks and sticking points. Contributions appear after moderation, in their original language. Do not upload instruction pages or personal contact details.
No approved tips yet.
Sign in to contributeSET THE MOOD
A soundtrack for your build
· Selected for the subject and atmosphere
Voices and acoustic instruments suggest a sociable, lived-in scene. This follows the pleasure of inhabiting an environment rather than assigning music automatically by geography.
OUR PICK
Buena Vista Social Club
Buena Vista Social Club
Rhythmic and livelyEditorial suggestions, not official soundtracks for the set. External services may require an account or subscription; editions and availability can vary by country. Suggest another soundtrack →
Report a problem with this set →
YOUR NEXT BUILD
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