Flower Girls

If you can't get them both in the same color, the sash idea is really great!

How distinct are the colors? Because ivory can be suuuuper close to white or not. If the dresses are almost the same color, I think switching the belts is just going to look like the girls just accidentally got the wrong belts. That kind of alternating works well when they’re very distinct colors, like blue and white. When they’re close, it just looks like a mistake. If you can’t swap one for the same color, I’d give them belts that match another wedding color to tie them together.