What are these?

Part looks like coral (the yellow portion). The white on a shell thing look like pearls. I am pretty sure they are not. I have no idea. If you do, please let me know. I am dumbfounded. Maybe you can visit the reef and find the same? Enjoy your Friday and the weekend.

PS. My followers let me know that they are an algae called by several names such as sailor's eyeball and sea pearls. Pretty cool!