Ariel's Undersea Palace

1 part comes in a colour no other set has for that mould

• Panel 1 x 4 x 5 with Arched WindowBright Light Yellow · ×4

6 parts appear in only a few other sets

• Equipment Crystal Ball Globe 2 x 2 x 2Glitter Trans-Clear · ×2also in 41075 The Elves' Treetop Hideaway
• Musical Instrument MaracasLimealso in 43105 Party Llama BeatBox
• Slide Curved 180°Pearl Goldalso in 43207 Ariel's Underwater Palace (all Disney)
• Headwear Accessory Crown / TiaraDark Pinkalso in 41162 Ariel, Aurora, and Tiana's Royal Celebration, 41382 LEGO Friends Advent Calendar
• Wedge Plate 8 x 8 Cut CornerMedium Azurealso in 70751 Temple of Airjitzu, 60380 Downtown
• Brick 1 x 1 x 5 with Solid StudBright Light Yellow · ×2also in 41005 Heartlake High, 41037 Stephanie's Beach House, 41704 Main Street Building

3 moulds first came out in 2015, including in this set

• Animal Body Part, Clam / Scallop Half Shell with 4 Studs×5
• Animal, Crab with Sebastian Print
• Plant, Flower with 5 Pointed Petals and Pin

12 existing moulds first came out in their colour in 2015, including in this set

• Brick Curved 2 x 1 No Studs [1/2 Bow]Magenta · ×6
• Plant, Leaves 4 x 3Dark Pink · ×5
• Brick Arch 1 x 4 x 2Bright Light Yellow · ×4
• Rock - Heart Jewel with ShaftTrans-Light Blue · ×4
• Brick Arch 1 x 8 x 2 RaisedBright Light Yellow · ×3
• and 7 more

2 minifigure parts with their print are only in this set

• Minidoll Hips and Fishtail (Mermaid) with Bright Pink Tail Fin PrintDark Pink
• Minidoll Torso Girl with Bright Pink Shell Bikini Print, Light Nougat Arms and…Light Nougat