Disappearing the Pen

MATERIAL- Rubber, Pen & pin
PROCERDURE- The magician should wear the full dress & in the interior of the shelve hang the rubber with the help of the pin then with the help of the rubber hang the top of the pen then take the pen out from the shelve & show these pen to the audience & when you will clap the pen will go inside because of the rubber go & show these to your friends