A multicore optical fiber with an integral diffractive element. The scaler positioning module may include scaler slots for arranging the signal path of the selected video signal through at least one scaler in the scaler positioning module. The application server is adapted to communicate with the software client and facilitate the real time two-way communication between the entertainment device and the telephony device. The string of lights is thereby protected against damage and dust. Such training may occur in a live seminar setting, via audio or video tape, or may be delivered during an in-person solicitation. Also including a discharging mechanism having fixed and movable grip members to be manually actuated, than in turn actuate a spring assembly and releases a closure member to permit the mixed homogenized paste to flow out of the mixing chamber.