Abstract: A plaything comprising two mug-shaped receptacles and a linear flaccid line which may be a cord, a chain, a string of beads, or the like. One end of said line is held inside one receptacle, and the other end of said line is held inside the other receptacle, both of said receptacles being at least large enough to house substantially all of said line. Prior to using the plaything, the two receptacles are placed side by side on a horizontal surface and substantially all of said line is hand-fed into one receptacle so as to be amassed in a heap with the last fed-in parts resting on top of the previously fed-in parts. Then, when the receptacle housing most of said is positioned above the other receptacle, said line -- because of gravity -- will run from the upper receptacle into the lower receptacle. When most of said line is amassed in a heap in the lower receptacle, the positions of the receptacles are interchanged and the direction of running of said line reversed.