Airflow straightener with SODA
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Materials: IKEA SODA, paper core, scissors
Description: I have plenty of SODA laying around, and a bunch of paper cores. I combine these items to built a DIY airflow straightener.
Cut the SODA straws according to the length of the paper core you're going to use. Then stuff in more straws inside the core until it's stiff and it won't slide easily.
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