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A quick mod for a tennis ball. Can be used for a variety of purposes including: squirtgun, water bottle, ammunition, and more!
Tennis ball (duh) Exacto knife, or any other sharp object
stab your tennis ball (just once) with the sharp object. I found it was much easier to stab on the rubber lines, instead of messing about with all the...
When you squeeze the tennis ball on either side of the crack, a hole will appear. hold this under a faucet and squeeze it a couple times to suck in wa...
To make the tennis ball squirt, squeeze it! the water will come out in a jet about 10 feet long ( if you squeeze it hard enough). the picture doesn't ...
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