An apparatus for selectively preparing, storing and presenting to a blowing nozzle any one of a plurality of different weft yarns, A storing device for drawing off and temporarily holding an intermediate length of one of the weft yarns cooperates with a guiding device having separate means for supporting in a rest position an intermediate portion of each of the weft yarns, Which is selectively movable into a plurality of positions in each of which an intermediate portion of one of the weft yarns is presented to the storing device, An auxiliary device is provided for selectively presenting the end of any one of the weft yarns to a blowing nozzle, and has means for receiving the end of each of the weft yarns in a rest position, and is selectively movable into a plurality of positions in each of which the end of one of the weft yarns is presented to the blowing nozzle. A mechanism connects the guiding device to the auxiliary device to cause the auxiliary device to present the end of a weft yarn to the blowing nozzle when the guiding device is moved into a position to present an intermediate portion of the same yarn to the storing device.