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Picture of Tennis Ball Headphones
So basically I took an old set of crappy, broken headphones and turned them into really cool looking (and functional) tennis ball headphones (I was inspired by a tennis ball stereo instructable).

Here's what you need:
a tennis ball
a saw
an old set of crappy, broken headphones (speakers and wire still intact)
a hot glue gun
a metal clothes hanger
string
some sort of cloth (the softer the better, but not too thick)

Step 1: Cutting the Tennis Ball and Sizing the Speakers

Picture of Cutting the Tennis Ball and Sizing the Speakers
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Ok, so the first step is to cut the tennis ball in half. I found that the easiest way to do this was to simply stick the tennis ball in a clamp, to hold it still, and then to saw it in half. Also, try to make the tennis ball halves the same size.
Once you half your two tennis ball halves, you'll probably want to make a notch near the bottom of each (for the speaker wires). I used my pocket knife to do this step.

Now you have to make sure your headphone speakers will fit into the tennis ball halves. You can do this one of two ways. I simply left my speakers in their case and sawed off the part that connects them (see picture), but you could also just take the speakers out of the case (if you do this, the speakers will be smaller and will sit farther back in the tennis ball; the speakers will be farther away from your ears).
 
bobsquared1 year ago
you beat me to it.
grannyjones3 years ago
I may try this with a wiffle ball--I like ventilation.
montjoel3 years ago
Or , make two holes ( top and bottom ) so that the coat hanger can be pushed through. Now , the configuration of the coat hanger might have to be changed , so that the speakers can slide up and down to be adjustable. Now, to hold the different positions ; the coat hanger can be bent ..... , or good quality tape can be rapped at different positions . Thanks for your efforts! Cool idea!
h.calvin7205 years ago
 What if you zip tied them in before putting the fabric over the openings that way you could just cut the zip ties when you wanted to take them out? Just an idea.
Wasagi5 years ago
 Excellent.

I really want to make these! But, it also happens to be 12 here on the east coast... Tomorrow!
dammit! cool instructable, i just did this but used an old mini disco ball instead of a tennis ball after seeing an advert for virgin mobile i think (the massive posters round london with diffrent mods on head phones) n chill joemonkey! try asking him before acting like a dick!!! no offense :)
Uthman7 years ago
hey, wouldnt the sound be better if you cut a little hole in the ball behind the speaker (enough such that air could escape in and out)? because the way it is right now, the speaker membrane will try to vibrate in and out of the ball, but since its more or less sealed, it will have to push and tug against the air trapped behind there. sorta like adding capacitance or something. i think that would muffle out the sounds quality a little...
admanrocks8 years ago
those are super cool