I'm a big fan of finding inexpensive dresses for your flower girls, since let's be honest- there is a 50% chance the dress won't make it unharmed through the reception, and even if it does, kids grow so fast that it will be hard for them to wear it again. So I think Target's deal of the day would be perfect for a flower girl. It's sweet, white, and it only costs $15.99 with free shipping! Plus you could always pair it with a cheap sash to bring in your wedding colors.  And it looks like it would be a good twirling dress- which is, of course, the most important thing to consider.  J