I need to find something before this Sunday, either matching or very similar, clothing for my daughter (7) and I to wear. We've been selected to participate in a mother/daughter look alike contest!

We actually do look very much alike (I've been told my many people she's my "mini-me"), but several friends have advised me that we should dress as similar as possible, to help enphasize how much we resemble each other. (We even have the same haircut!) It would be awesome to win this - one of the prizes is a trip to Bermuda!
I don't have enough time to order something online. We have all the usual stores here, Kohl's, Macy's, Belk's, Dillards, JCP, Steinmart....
Any suggestions or ideas are greatly appreciated!
Suzanne