Yes Using balloons used by others can reduce waste and environmental pollution. And buying new balloons may cost more money, while using balloons used by others can save money. Using balloons used by others can stimulate creativity. These balloons can be used to make unique decorations, such as garlands and balloon piles. So balloons used for wedding decoration can use other people's leftovers. It should be noted that when using balloons used by others, it is best to ask the owner's opinion first.