From the Super Mario Wiki
Retrieved from "http://www.mariowiki.com/index.php?title=Ghost_Vase&oldid=1885142"
Ghost Vases are floating vases found in New Super Mario Bros. Wii. When the player gets close to a Ghost Vase, it will turn pink and fly into the air, rotating. However, it will eventually stop and rotate faster. After this, it will fly toward the player. The player can avoid the Ghost Vase simply by jumping over it or running away from it. If the Ghost Vase misses its target, it will continue to fly until it hits a platform or a wall, where it will break and release a Coin.