Q&A for How to Make a Disco Ball with CDs

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  • Question
    Would super glue work?
    wikiHow Staff Editor
    Staff Answer
    This answer was written by one of our trained team of researchers who validated it for accuracy and comprehensiveness.
    wikiHow Staff Editor
    Staff Answer
    Super glue would totally work! Simply apply a small amount to the back of a CD tile and stick it to the Styrofoam ball.
  • Question
    How do I make it look real?
    Community Answer
    Cut as evenly as you can, but do not cut yourself! It doesn't have to look like a hunky, expensive one from the '70s -- it's just for fun. No one will judge you.
  • Question
    Can I use a glue stick for this project?
    Community Answer
    A glue stick would not have enough stickiness to hold the CD pieces on the ball, so it is better to use a liquid glue or permanent glue.
  • Question
    How many CDs are needed?
    Community Answer
    It depends on the size of the ball you want to make. The shiny part of a standard CD has an area of about 100 square centimeters. The surface area of a ball is equal to (12.56 X radius X radius). The radius is how far it is from the center of your ball to the edge so just measure how far across the ball is and divide by 2 to get the radius (most hobby stores that sell Styrofoam balls will probably know how big they are though so just ask). So if your ball is 10 cm across your formula would be: (12.56 X 5 X 5) or 314 square centimeters. So for a 10 cm ball you would need four standard CDs.
  • Question
    How can I make it move without using a toy motor?
    Community Answer
    Tie it to the bottom middle part of a ceiling fan, if the middle part spins, and then set the fan to a low speed. It'll spin the ball on its own. Alternatively, just spin it with your hands from time to time.
  • Question
    Do you need colored lights for the disco ball to work?
    Community Answer
    No.
  • Question
    Do I need to dip the CDs in hot water?
    Community Answer
    It is not entirely necessary. It just makes the CDs easier to cut. I would recommend dipping them in hot water.
  • Question
    Can I use Uhu gum for pasting the CD pieces onto the ball?
    Community Answer
    It depends on how sticky it is and how much you use. A hot glue gun would probably be better.
  • Question
    How would I reflect the color onto the ceiling?
    Community Answer
    Place your light source above the disco ball so that the color reflects on the ceiling.
  • Question
    Will my disco ball made with CDs be waterproof if I use hot glue?
    Community Answer
    Yes, hot glue is waterproof after it is dried. Just don't immerse it in water; rain is fine, flooding is not.
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