Palms and coconut crabs.

Mojang should add palms that would generate on sand beaches beside sea. Palms would have coconuts that you can break and eat. And from its shell you could create a new type of flower pot. But what if the coconut isn't a coconut? Well then you found a coconut crab with a shell that looks like a coconut. Crab is peaceful but if you kill it you get it's shell. With that you can then craft a device that let's you hear sounds of the sea and waves.