Rising tail

From PyroGuide

A rising tail is an effect that refers to producing a trail of sparks and or colors behind a shell as it rises. Palm shells are the most common to use this effect, the difference is the palm shells construction most often uses an internal comet. A rising tail can be one or more comets attached to the side or top of a shell, this is also refered to as a rising dragon effect. See Kyoku-do.