Although it can be played indoors, we recommend playing this one outside.
1. Place one plastic whistle inside each color of balloon before inflating.
2. Fill an equal number of different colors of balloons with helium and attach weights with ribbon.
3. Divide the party guests into the same number of teams as the number of different colored balloons.
4. At the signal, the children look for the whistle in their team's balloon color by sitting or stomping on them.
The team that is first to find and blow its whistle wins.