Birthday Cupcake
40905-1 Seasonal 2026 174 parts 3.8% repair risk Easy
Celebrate with the LEGO® Birthday Cupcake (40905). This customizable creation features a range of vibrant tiles and unique shapes, allowing for imaginative decoration. Included is a cheerful chef minifigure, complete with a charming balloon animal, perfect for adorning the cupcake. Candles are also included to personalize the display. This set offers a delightful building experience for those who appreciate baking themes and creative construction. Express your creativity with every brick. Contains 174 pieces.
Parts Inventory
| Part | Qty | LEGO price each |
|---|---|---|
 Tile, Star with Stud Holder, Pin Hole 11609 | 4× | €0,07 |
 Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) 15573 | 4× | €0,06 |
 Plate Special Round 2 x 2 with Center Stud (Jumper Plate) 18674 | 1× | €0,07 |
 Brick Special 1 x 2 x 1 2/3 with 4 Studs on 1 Side 22885 | 2× | €0,17 |
 Plant, Flower, Plate Round 1 x 1 with 5 Petals 24866 | 1× | €0,06 |
 Tile Round 1 x 1 Quarter 25269 | 4× | €0,05 |
 Tile Round 1 x 1 Quarter 25269 | 4× | €0,05 |
 Tile Round 1 x 1 Quarter 25269 | 4× | €0,05 |
 Tile Round 1 x 1 Quarter 25269 | 4× | €0,05 |
 Tile Round 1 x 1 Quarter 25269 | 4× | €0,05 |
 Tile Round 1 x 1 Quarter 25269 | 4× | €0,05 |
![Plate Special 1 x 2 Side Handle [Free Ends]](https://cdn.rebrickable.com/media/parts/elements/4140583.jpg) Plate Special 1 x 2 Side Handle [Free Ends] 2540 | 1× | €0,07 |
Repairability
Can you fix Birthday Cupcake if a piece goes missing?
2 of the 52 part+color combinations in this set appear in 3 or fewer sets ever made. Lose one of those and a replacement is very hard to find.
Theme average
2.1%
All sets
6.7%
Hardest to replace
More Seasonal sets
Browse more LEGO Seasonal sets related to Birthday Cupcake, including models from 2026 and other sets in the same theme.
Build DNA
Parts inventory insights for Birthday Cupcake
174 pieces puts this build -14% against the average Seasonal set and -75% against the average 2026 release.
Vs average Seasonal set
Average Seasonal set: 203 pieces across 308 other sets.
Vs average 2026 set
Average 2026 set: 687 pieces across 496 other sets.
Color profile
Dominant color
Medium Azure
Unique parts
0.9 pieces per unique type
Repeat factor
Average pieces per unique type.
Most used part
Tile Round 1 x 1 Quarter
24xResults are based on official LEGO part inventories. Accuracy improves as you confirm set completeness.
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