ISO Queen dress for DDs play

[mommy111]

DD (almost 12) is going to be a queen in the school play. She just told me that she needs the dress next week. Yikes! Any ideas? Where could I get queenly gowns from that won't break the bank? We did get a tiara and gloves from Claire's but Macy's etc didn't have any gowns that would work.
TIA for your ideas, this is our first play where we've had to provide costumes so I'm very lost

[jenstring95]

Here is the first one I came to on Amazon. It is a size 12-14 for $16+$4 shipping. Don't know if it would make it in time, though. There are probably more on there too.

http://www.amazon.com/Girls-Renaissance-Damsel-Dress-Medium/dp/B001VE6H1U/ref=sr_1_2?s=apparel&ie=UTF8&qid=1425182198&sr=1-2&keywords=queen+costume