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this can shoot tennis balls/anything else 100m ish

Step 1: materials

1)duct tape$4
2)a funnel-$3
3)surgical tubing- 6ft of it- usually around $5

TOTAL- $12ish
That's awesome. <br>
please comment if u liked this or not!!!!!

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More by t8rt0t:how to make a pea-shooter(easy)how to make a funnelator(easy)
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