DIY Phone Speaker

Make a rockin' customizable speaker for you and your friends to enjoy with just a few household items! Understand how sound vibrations can travel through different mediums and how the shape of the mediums can cause the sounds to be amplified!

Step-by-step tutorial

  • Step 1

    Measure the width and depth of the music playing device you plan to use, like a cell phone. Using these dimensions, cut out a slot in the kraft tube to fit the phone. The speaker portion will need to fit into the tube when you’re finished.

    Photo reference of how to complete step 1

  • Step 2

    Now it’s time to decorate! There’s no one way to do this! We painted our kraft tube with acrylic paint, added polka-dots with a circular sponge brush, and dip-dyed our cups by dunking them into a bowl of liquid watercolors. Get creative with your crafting techniques, this speaker could make a great accent to any room!

    Photo reference of how to complete step 2

  • Step 3

    Hold your kraft tube to the side of the cup near the bottom. Use a marker to trace the edge of the tube on the cup. Do this to both cups. Using a craft knife, cut out the holes you just traced. If needed, an adult should do any major cutting.

    Photo reference of how to complete step 3

  • Step 4

    Insert the kraft tube into the holes in the both of cups. Angle the kraft tube so that the slot is pointing almost directly upright, but slightly backwards. When the kraft tube positioned in the cups, use hot glue to secure it in place.

    Photo reference of how to complete step 4

  • Step 5

    Now insert the music device into the slot and crank up the tunes. You should hear music playing from the cups louder than the device can do on its own.

    Photo reference of how to complete step 5

  • Tip

    After some trial and error, we found that plastic cups worked better than paper cups! Try experimenting with your cups to see what works best for you.

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