Post ceremony guest celebration?

Often, guests will throw rice or blow bubbles after the bride and groom get married and walk down the aisle. My church won't let us do this.

Can anyone suggest some alternatives that I can do? Thanks in advance!

How about doing the wave? Haha, j/k.

I'm guessing they just don't want you throwing stuff in general because they don't want to clean it up? So you have to do something that's either visual or audio.

How about giving everyone a small church bell since it's a church? They can ring it as walk down the aisle. That would be cute!

The bell idea is cute! I've only been to weddings where they either have wedding bubbles or the guests just clap.

What about have everyone join in singing a song? Or clapping?

I like singing a song. Maybe you can work with your organist to suggest a good song to sing?