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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

<p>I added a small video showing the working whistle </p>
<p>Can we hear it?</p>
<p>now you can</p>
<p>Cool.</p><p>You know, you can edit that into the instructable as well.</p>
<p>done, thank you for the heads up</p>

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