Make a Homemade Cell Phone Speaker

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Make a Homemade Cell Phone Speaker

You will need 1 paper towel tube, 2 disposable cups, 1 marker, 1 cutter, 1 scissors, and 1 glue gun or silicon glue.

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Hardware Engineering

Step 1

You will need 1 paper towel tube, 2 disposable cups, 1 marker, 1 cutter, 1 scissors, and 1 glue gun or silicon glue.

Final steps

You're almost there! Complete all the steps, bring your creation to life, post it, and conquer the challenge!

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