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30720 LEGO Disney Princess Ariel and Flounder’s Birthday Music Fun thumbnail image

30720 LEGO Disney Princess Ariel and Flounder’s Birthday Music Fun
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30720 LEGO Disney Princess Ariel and Flounder’s Birthday Music Fun
  • Ariel and Flounder’s Birthday Music Fun thumbnail
  • Ariel and Flounder’s Birthday Music Fun thumbnail
  • Ariel and Flounder’s Birthday Music Fun thumbnail

LEGO 30720 Ariel and Flounder’s Birthday Music Fun is a Disney set currently available at retail for $4.99 and is projected to retire in mid and late 2027. Current new-sealed secondary market prices range from $7 to $9, with the average above MSRP at $5.

Forecast Model

This represents the expected annual growth (CAGR) based solely on a forecast model.
LEGO 30720 Ariel and Flounder’s Birthday Music Fun is a Disney Disney Princess set released in 2026, containing 39 pieces and 1 minifigure. Inspired by The Little Mermaid, it includes Ariel and Flounder characters. The build features a sea-sponge pipe organ and a saxophone.

Once retired, the expected annual growth will be close to 2% after the second year, valuing the set between $5 and $5 shortly after it is retired.
All regions

For Sale (New/Sealed)

This chart shows the sales listing trends of 30720 Ariel and Flounder’s Birthday Music Fun.
 (US) Official LEGO Ariel and Flounders Birthday Music Fun
BrickEconomy Choice
$4.99
(US) Paper Bag 30723 30714 30715 30720 30721 30712 polybag YOU Pick NEW 2026 $5.00
+0.2%
(US) LEGO Disney Princess Ariel & Flounder's Birthday Music Fun 30720 $5.50
+10.2%
(FR) Disney Polybag - Ariels Birthday Party with Polochon 30720LEGO3072 $6.45
+29.3%
(US) LEGO Disney Princess Ariel And Flounder's Birthday Music Fun Building Set 30720 $6.99
+40.1%
(US) 30720 Disney Princess Ariel & Flounder's Birthday Music Fun SEALED $7.94
+59.1%
(US) Disney 30720 Ariel & Flounder's Birthday Music Fun Building Set Sealed $7.99
+60.1%
(US) LEGO Disney Princess Ariel & Flounder's Birthday Music Fun 30720 $7.99
+60.1%
(US) 30720 Disney Princess Ariel & Flounder's Birthday Music Fun - Paper Bag Set $7.99
+60.1%
(US) LEGO Disney Princess Ariel & Flounder's Birthday Music Fun 30720 $7.99
+60.1%
(US) LEGO Disney Princess Ariel & Flounder's Birthday Music Fun 30720 $8.00
+60.3%
(US) Disney Princess Ariel & Flounder's Birthday Music Fun (30720) $8.00
+60.3%
(CA) Ariel & Flounder's Birthday Music Fun Lego 30720 Paper bag New Sealed $8.62
+72.7%
(US) LEGO Disney Princess Ariel & Flounder's Birthday Music Fun Building Set 30720 $8.99
+80.2%
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Mini-doll figures

Ariel and Flounder’s Birthday Music Fun contains 1 mini-doll figure. The mini-doll figure is also included in 1 other set.
dp227
Ariel
Ariel mermaid figure with medium tan skin - dp227
2 sets
Value $6.23

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Pieces / Mini-doll figures 140 / 4
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Theme / Subtheme Disney / Disney Princess
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Pieces 80
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Retail $9.99
Value $17.66
Growth  +76.8%
Annual growth 4.4%

My Collection

Ariel and Flounder’s Birthday Music Fun Reviews

11 ratings
4.6
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About Disney

The LEGO Disney Princess theme encompasses LEGO sets based on various Disney animated films featuring princess characters. These sets highlight characters, scenes, and locations related to movies like Cinderella, Beauty and the Beast, Aladdin, and others.

Disney Princess was introduced in 2018 and currently consists of 12 sets. As of today, 43205 Ultimate Adventure Castle is the most valuable Disney Princess set with an estimated new/factory sealed value of $117.
Read more
Treat any Disney’s The Little Mermaid fan to loads of musical fun, with Ariel and Flounder LEGO® | Disney Princess characters, a sea-sponge pipe organ and a saxophone.
Description provided by LEGO©