1. I hope you can add a Bubble Column to the hydrothermal vent and configure how often it will erupt, so that it can become one of the excellent devices.

2. Starfish, a great decoration, it's best to make it manually rotatable when placed to specify a direction, which is great for designing some ocean puzzles.

3. Pearl function expansion, such as the ability to synthesize a crown of the sea, which can attract all kinds of fish, shrimp, crabs, etc., and also has a Totem of Undying effect in water.

4. Cute decorations and unique treasure extensions in the ocean, such as a mermaid music box, whale call music Discs, octopus played pipes, various shapes of coral sculptures, SpongeBob SquarePants shaped sponges (which can be used for rust removal), and more.

5. Marine plant extensions resembling ancient seeds, mainly used to decorate seaside avenues, are very beautiful.

Finally, I would like to thank you for your excellent and refined creations, which have made me very happy. Wishing you all the best!