How to indicate or highlight a target tile.

I have a 3D tile surface having different shapes of tiles like square, hexagonal etc in different game levels. My game logic is to slide a disk (an object, or a ball) over these tiles. So I want to highlight or indicate the first tile at the beginning of level for ease of the user to throw or slide the disk on it. And also highlight the next coming tile. @cupsster , @robertbu , @abi.kr01 , @Coreyf716 , @ganesh-mune , @cjdev , @rocket350 ,@etopsirhc , @Pixzle