karessamom,
I just bought son a dark blue suite at Walmart for about $35--They have all their Easter stuff out--suites and fancy dresses for kids! Now is the time to buy if you need to!
While walking through Wal*Mart last night, I noticed a rack of very fancy "Easter" dresses for young girls, all priced under $20, that would be very suitable for formal evenings.
Norm.