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CROWN CAP WHISTLE - ENGLISH - 14MB.wmv

CROWN CAP WHISTLE - ENGLISH - 14MB.wmv
  Arvind Gupta
24   30K  

This is very low-cost musical toy. Stretch a piece of torn balloon on a metal crown cap. The rubber will stick to the notches and remain stretched. Now place the membrane near your mouth and blow. The rubber membrane in tension will vibrate and produce a

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