I'm researching for a sustainability project on finding sustainable alternatives for using balloons during celebrations. As you all know, nylon balloons can be extremely harmful to our environment and often times find themselves in our waterways and oceans after usage. People are reluctant to stop using balloons due to how synonymous with celebrations they've become. So I've come to your community to see if any of you used or have heard of sustainable alternatives to balloons. Any help would be greatly appreciated.