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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