Use Brain Coral to create a shaggy carpet or rug.
Tip:Place a similar color slab beneath the Coral to fill out the colour more)
Note: You’ll only get colour coral in Java Edition.
How to keep Coral alive and colourful:
Fill the area with water 
Place slabs on top Now coral placed on top will retain its colour
Coral Placed in Bedrock Edition will always be Gray (The Coral block must be in direct contact with a water block). Although, it still looks okay as a gray carpet…
