Activity for Michelle

Hi, all. I know the etiquette behind assigning tables and the popular opinion around here... but we are having a cocktail reception only. We are absolutely feeding our guests a hearty meal but not having a traditional sit down dinner. Have any of you...

Our 2 nieces will be flower girls. They will be 7 & 8 years old. I want to keep the cost low as I know they're growing and may not get much usage out of the dress. Any ideas on where I can look for appropriate dresses at a good cost? Thank you!