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Supplies needed
Balloons - the type you fill with helium
8 - 10 rubber bands for each Yo Yo to make or One over sized rubber band
Instructions
Fill balloon with water to the size of a golf ball then fill with air to the size of a baseball or softball
Tie knot in balloon opening.
Make a rubber band chain the length you would like to use as your Yo Yo string. Tie to the balloon where you tied the knot