Introduction: DIY Whistle Out of a Beer Can
the process to make a whistle out of some metal sheeting is quite easy
start with a strip of aluminium can.
Step 1: Split the Strip in Two Halves
Step 2: Fold One of the Pieces Like This
Step 3: Wrap the Second Part on Top of the Tip of the Whistle.
Step 4: Hold It Like This to Use It
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