A casting rod provides a reel seat with trigger mechanism having a depending arm to fasten a first rearward end of an endless elastic propellant device. The second forward end of the elastic propellant device is carried by a depending arm of a stretching mechanism that is selectively positionable on the rod at plural points spacedly forward of the first depending arm. A fishing line carried in ordinary fashion by the rod is fastened to the propellant device and projected with it, responsive to trigger motion, to propel the fishing line in predetermined trajectory at a distance from the rod. The propellant device remains interconnected to the end portion of a fishing line to there serve as a float or sinker depending upon density of that propellant device.