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This is my update of the original "Personal-breath-smeller". This one has pictures. These are the materials that you'll need:
If your straw is a bendy straw, simply cut off the bendy part.
Cut your straw in half.
Take your first half. Cut a 45-degree angle off of one of the tips.
Take the second half. Cut an oval on the side about 2-thirds of the way down.
Tape the 45-degree angle to the oval so that it is all a big tube.
Tape the tip of your tube shut.
Trim about 1 centimeter (1/2 inch) off of the top tube.
Blow into the bottom tube. If you made it right, you should feel your breath going up your nose. Sniff as soon as you stop blowing. YOU CAN SMELL YOUR...
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