The Mermaid Castle

Notable parts

• 8 moulds appear in no other set: Backdrop, Belville, The Mermaid Castle; Belville Figure Fixed Elbows, Child, Female, Light Yellow Hair, Pink Swimsuit…; Belville Figure Fixed Elbows, Female, Rust Orange Hair, Swimsuit with Seashell…; Belville Figure Fixed Elbows, Male, Brown Hair, Light Blue Shirt with Net and…; Belville, Animal, Seahorse; and 3 more.
• 26 parts come in a colour no other set has for that mould: Plant, Cherries (Dark Pink) ×6; Animal, Fish, Ornamental (Trans-Orange) ×5; Animal Body Part, Dinosaur, Back Sail 8 x 2 x 5 (Trans-Dark Pink) ×4; Support Assembly, Column 2 x 2 x 12 Grooves on all Sides and Top Peg insert (Aqua) ×4; Belville Wall 6 x 8 x 12 - Tower with Window (Sky Blue) ×3; and 21 more.
• 1 printed part is only in this set: Support 2 x 2 x 11 Solid Pillar with Marbled Aqua Top Pattern (Bright Green) ×4.
• 16 parts appear in only a few other sets: Animal, Starfish (Trans-Yellow) ×10 — also in 3316 LEGO Friends Advent Calendar; Hat, Chef / Baker (Trans-Light Blue) ×2 — also in 4762 Rescue from the Merpeople; Belville / Scala, Swing (Trans-Orange) — also in 5940 Doll's House (all Belville); Belville, Animal / Creature Accessory, Horse Harness with Shafts (Aqua) — also in 5961 Snow Queen (all Belville); Belville, Equipment, Hair Band with Hearts (Dark Pink) — also in 5877 The Royal Wedding Coach (all Belville); Brick 2 x 3 (Magenta) — also in 5475 Girls Fantasy Bucket; Brick 8 x 16 (Light Lime) — also in 7578 Ultimate Princesses (all Belville); Door Frame Arched 1 x 8 x 12 (Magenta) — also in 7582 Royal Summer Palace (all Belville); Plate 2 x 4 (Sky Blue) — also in 5943 Interior Designer (all Belville); Plate 4 x 6 (Bright Light Orange) — also in 76462 Hogwarts House Crest; Animal, Fish, Ornamental (Trans-Dark Pink) ×6 — also in 7600 LEGO BELVILLE Advent Calendar, 7582 Royal Summer Palace; Animal, Starfish (Trans-Purple) ×3 — also in 9780723291299, 41050 Ariel's Amazing Treasures; and 4 more.
• 3 parts are otherwise only found in Belville sets: Belville, Equipment, Bow Small (Dark Pink) ×4; Belville, Headwear, Crown Small (Chrome Gold); Belville, Headwear, Crown Small (Chrome Pink).
• 22 existing moulds first came out in their colour in 2005, including in this set: Animal, Starfish (Trans-Yellow) ×10; Animal, Fish, Ornamental (Trans-Dark Pink) ×6; Animal, Crab (Bright Light Orange) ×4; Plant, Sea Grass (Trans-Green) ×4; Animal, Starfish (Trans-Purple) ×3; and 17 more.

Calculated from Rebrickable’s public set inventories, excluding sticker sheets and spare parts.